]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
6.6-stable patches
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 18 Jun 2024 14:01:18 +0000 (16:01 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 18 Jun 2024 14:01:18 +0000 (16:01 +0200)
added patches:
clkdev-update-clkdev-id-usage-to-allow-for-longer-names.patch
dma-buf-handle-testing-kthreads-creation-failure.patch
irqchip-gic-v3-its-fix-potential-race-condition-in-its_vlpi_prop_update.patch
kheaders-explicitly-define-file-modes-for-archived-headers.patch
null_blk-print-correct-max-open-zones-limit-in-null_init_zoned_dev.patch
perf-auxtrace-fix-multiple-use-of-itrace-option.patch
perf-core-fix-missing-wakeup-when-waiting-for-context-reference.patch
riscv-fix-overlap-of-allocated-page-and-ptr_err.patch
sock_map-avoid-race-between-sock_map_close-and-sk_psock_put.patch
spmi-hisi-spmi-controller-do-not-override-device-identifier.patch
tracing-add-module_description-to-preemptirq_delay_test.patch
tracing-selftests-fix-kprobe-event-name-test-for-.isra.-functions.patch
vmci-prevent-speculation-leaks-by-sanitizing-event-in-event_deliver.patch
x86-amd_nb-check-for-invalid-smn-reads.patch
x86-kexec-fix-bug-with-call-depth-tracking.patch

16 files changed:
queue-6.6/clkdev-update-clkdev-id-usage-to-allow-for-longer-names.patch [new file with mode: 0644]
queue-6.6/dma-buf-handle-testing-kthreads-creation-failure.patch [new file with mode: 0644]
queue-6.6/irqchip-gic-v3-its-fix-potential-race-condition-in-its_vlpi_prop_update.patch [new file with mode: 0644]
queue-6.6/kheaders-explicitly-define-file-modes-for-archived-headers.patch [new file with mode: 0644]
queue-6.6/null_blk-print-correct-max-open-zones-limit-in-null_init_zoned_dev.patch [new file with mode: 0644]
queue-6.6/perf-auxtrace-fix-multiple-use-of-itrace-option.patch [new file with mode: 0644]
queue-6.6/perf-core-fix-missing-wakeup-when-waiting-for-context-reference.patch [new file with mode: 0644]
queue-6.6/riscv-fix-overlap-of-allocated-page-and-ptr_err.patch [new file with mode: 0644]
queue-6.6/series
queue-6.6/sock_map-avoid-race-between-sock_map_close-and-sk_psock_put.patch [new file with mode: 0644]
queue-6.6/spmi-hisi-spmi-controller-do-not-override-device-identifier.patch [new file with mode: 0644]
queue-6.6/tracing-add-module_description-to-preemptirq_delay_test.patch [new file with mode: 0644]
queue-6.6/tracing-selftests-fix-kprobe-event-name-test-for-.isra.-functions.patch [new file with mode: 0644]
queue-6.6/vmci-prevent-speculation-leaks-by-sanitizing-event-in-event_deliver.patch [new file with mode: 0644]
queue-6.6/x86-amd_nb-check-for-invalid-smn-reads.patch [new file with mode: 0644]
queue-6.6/x86-kexec-fix-bug-with-call-depth-tracking.patch [new file with mode: 0644]

diff --git a/queue-6.6/clkdev-update-clkdev-id-usage-to-allow-for-longer-names.patch b/queue-6.6/clkdev-update-clkdev-id-usage-to-allow-for-longer-names.patch
new file mode 100644 (file)
index 0000000..281ea32
--- /dev/null
@@ -0,0 +1,49 @@
+From 99f4570cfba1e60daafde737cb7e395006d719e6 Mon Sep 17 00:00:00 2001
+From: "Michael J. Ruhl" <michael.j.ruhl@intel.com>
+Date: Fri, 23 Feb 2024 15:25:56 -0500
+Subject: clkdev: Update clkdev id usage to allow for longer names
+
+From: Michael J. Ruhl <michael.j.ruhl@intel.com>
+
+commit 99f4570cfba1e60daafde737cb7e395006d719e6 upstream.
+
+clkdev DEV ID information is limited to an array of 20 bytes
+(MAX_DEV_ID).  It is possible that the ID could be longer than
+that.  If so, the lookup will fail because the "real ID" will
+not match the copied value.
+
+For instance, generating a device name for the I2C Designware
+module using the PCI ID can result in a name of:
+
+i2c_designware.39424
+
+clkdev_create() will store:
+
+i2c_designware.3942
+
+The stored name is one off and will not match correctly during probe.
+
+Increase the size of the ID to allow for a longer name.
+
+Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
+Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
+Link: https://lore.kernel.org/r/20240223202556.2194021-1-michael.j.ruhl@intel.com
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Signed-off-by: Stephen Boyd <sboyd@kernel.org>
+Cc: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/clk/clkdev.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/clk/clkdev.c
++++ b/drivers/clk/clkdev.c
+@@ -144,7 +144,7 @@ void clkdev_add_table(struct clk_lookup
+       mutex_unlock(&clocks_mutex);
+ }
+-#define MAX_DEV_ID    20
++#define MAX_DEV_ID    24
+ #define MAX_CON_ID    16
+ struct clk_lookup_alloc {
diff --git a/queue-6.6/dma-buf-handle-testing-kthreads-creation-failure.patch b/queue-6.6/dma-buf-handle-testing-kthreads-creation-failure.patch
new file mode 100644 (file)
index 0000000..f612921
--- /dev/null
@@ -0,0 +1,44 @@
+From 6cb05d89fd62a76a9b74bd16211fb0930e89fea8 Mon Sep 17 00:00:00 2001
+From: Fedor Pchelkin <pchelkin@ispras.ru>
+Date: Wed, 22 May 2024 21:13:08 +0300
+Subject: dma-buf: handle testing kthreads creation failure
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Fedor Pchelkin <pchelkin@ispras.ru>
+
+commit 6cb05d89fd62a76a9b74bd16211fb0930e89fea8 upstream.
+
+kthread creation may possibly fail inside race_signal_callback(). In
+such a case stop the already started threads, put the already taken
+references to them and return with error code.
+
+Found by Linux Verification Center (linuxtesting.org).
+
+Fixes: 2989f6451084 ("dma-buf: Add selftests for dma-fence")
+Cc: stable@vger.kernel.org
+Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
+Reviewed-by: T.J. Mercier <tjmercier@google.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20240522181308.841686-1-pchelkin@ispras.ru
+Signed-off-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/dma-buf/st-dma-fence.c |    6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/dma-buf/st-dma-fence.c
++++ b/drivers/dma-buf/st-dma-fence.c
+@@ -540,6 +540,12 @@ static int race_signal_callback(void *ar
+                       t[i].before = pass;
+                       t[i].task = kthread_run(thread_signal_callback, &t[i],
+                                               "dma-fence:%d", i);
++                      if (IS_ERR(t[i].task)) {
++                              ret = PTR_ERR(t[i].task);
++                              while (--i >= 0)
++                                      kthread_stop_put(t[i].task);
++                              return ret;
++                      }
+                       get_task_struct(t[i].task);
+               }
diff --git a/queue-6.6/irqchip-gic-v3-its-fix-potential-race-condition-in-its_vlpi_prop_update.patch b/queue-6.6/irqchip-gic-v3-its-fix-potential-race-condition-in-its_vlpi_prop_update.patch
new file mode 100644 (file)
index 0000000..93ebef5
--- /dev/null
@@ -0,0 +1,141 @@
+From b97e8a2f7130a4b30d1502003095833d16c028b3 Mon Sep 17 00:00:00 2001
+From: Hagar Hemdan <hagarhem@amazon.com>
+Date: Fri, 31 May 2024 16:21:44 +0000
+Subject: irqchip/gic-v3-its: Fix potential race condition in its_vlpi_prop_update()
+
+From: Hagar Hemdan <hagarhem@amazon.com>
+
+commit b97e8a2f7130a4b30d1502003095833d16c028b3 upstream.
+
+its_vlpi_prop_update() calls lpi_write_config() which obtains the
+mapping information for a VLPI without lock held. So it could race
+with its_vlpi_unmap().
+
+Since all calls from its_irq_set_vcpu_affinity() require the same
+lock to be held, hoist the locking there instead of sprinkling the
+locking all over the place.
+
+This bug was discovered using Coverity Static Analysis Security Testing
+(SAST) by Synopsys, Inc.
+
+[ tglx: Use guard() instead of goto ]
+
+Fixes: 015ec0386ab6 ("irqchip/gic-v3-its: Add VLPI configuration handling")
+Suggested-by: Marc Zyngier <maz@kernel.org>
+Signed-off-by: Hagar Hemdan <hagarhem@amazon.com>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Cc: stable@vger.kernel.org
+Reviewed-by: Marc Zyngier <maz@kernel.org>
+Link: https://lore.kernel.org/r/20240531162144.28650-1-hagarhem@amazon.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/irqchip/irq-gic-v3-its.c |   44 ++++++++++-----------------------------
+ 1 file changed, 12 insertions(+), 32 deletions(-)
+
+--- a/drivers/irqchip/irq-gic-v3-its.c
++++ b/drivers/irqchip/irq-gic-v3-its.c
+@@ -1840,28 +1840,22 @@ static int its_vlpi_map(struct irq_data
+ {
+       struct its_device *its_dev = irq_data_get_irq_chip_data(d);
+       u32 event = its_get_event_id(d);
+-      int ret = 0;
+       if (!info->map)
+               return -EINVAL;
+-      raw_spin_lock(&its_dev->event_map.vlpi_lock);
+-
+       if (!its_dev->event_map.vm) {
+               struct its_vlpi_map *maps;
+               maps = kcalloc(its_dev->event_map.nr_lpis, sizeof(*maps),
+                              GFP_ATOMIC);
+-              if (!maps) {
+-                      ret = -ENOMEM;
+-                      goto out;
+-              }
++              if (!maps)
++                      return -ENOMEM;
+               its_dev->event_map.vm = info->map->vm;
+               its_dev->event_map.vlpi_maps = maps;
+       } else if (its_dev->event_map.vm != info->map->vm) {
+-              ret = -EINVAL;
+-              goto out;
++              return -EINVAL;
+       }
+       /* Get our private copy of the mapping information */
+@@ -1893,46 +1887,32 @@ static int its_vlpi_map(struct irq_data
+               its_dev->event_map.nr_vlpis++;
+       }
+-out:
+-      raw_spin_unlock(&its_dev->event_map.vlpi_lock);
+-      return ret;
++      return 0;
+ }
+ static int its_vlpi_get(struct irq_data *d, struct its_cmd_info *info)
+ {
+       struct its_device *its_dev = irq_data_get_irq_chip_data(d);
+       struct its_vlpi_map *map;
+-      int ret = 0;
+-
+-      raw_spin_lock(&its_dev->event_map.vlpi_lock);
+       map = get_vlpi_map(d);
+-      if (!its_dev->event_map.vm || !map) {
+-              ret = -EINVAL;
+-              goto out;
+-      }
++      if (!its_dev->event_map.vm || !map)
++              return -EINVAL;
+       /* Copy our mapping information to the incoming request */
+       *info->map = *map;
+-out:
+-      raw_spin_unlock(&its_dev->event_map.vlpi_lock);
+-      return ret;
++      return 0;
+ }
+ static int its_vlpi_unmap(struct irq_data *d)
+ {
+       struct its_device *its_dev = irq_data_get_irq_chip_data(d);
+       u32 event = its_get_event_id(d);
+-      int ret = 0;
+-      raw_spin_lock(&its_dev->event_map.vlpi_lock);
+-
+-      if (!its_dev->event_map.vm || !irqd_is_forwarded_to_vcpu(d)) {
+-              ret = -EINVAL;
+-              goto out;
+-      }
++      if (!its_dev->event_map.vm || !irqd_is_forwarded_to_vcpu(d))
++              return -EINVAL;
+       /* Drop the virtual mapping */
+       its_send_discard(its_dev, event);
+@@ -1956,9 +1936,7 @@ static int its_vlpi_unmap(struct irq_dat
+               kfree(its_dev->event_map.vlpi_maps);
+       }
+-out:
+-      raw_spin_unlock(&its_dev->event_map.vlpi_lock);
+-      return ret;
++      return 0;
+ }
+ static int its_vlpi_prop_update(struct irq_data *d, struct its_cmd_info *info)
+@@ -1986,6 +1964,8 @@ static int its_irq_set_vcpu_affinity(str
+       if (!is_v4(its_dev->its))
+               return -EINVAL;
++      guard(raw_spinlock_irq)(&its_dev->event_map.vlpi_lock);
++
+       /* Unmap request? */
+       if (!info)
+               return its_vlpi_unmap(d);
diff --git a/queue-6.6/kheaders-explicitly-define-file-modes-for-archived-headers.patch b/queue-6.6/kheaders-explicitly-define-file-modes-for-archived-headers.patch
new file mode 100644 (file)
index 0000000..6c22c09
--- /dev/null
@@ -0,0 +1,37 @@
+From 3bd27a847a3a4827a948387cc8f0dbc9fa5931d5 Mon Sep 17 00:00:00 2001
+From: Matthias Maennich <maennich@google.com>
+Date: Tue, 28 May 2024 11:32:43 +0000
+Subject: kheaders: explicitly define file modes for archived headers
+
+From: Matthias Maennich <maennich@google.com>
+
+commit 3bd27a847a3a4827a948387cc8f0dbc9fa5931d5 upstream.
+
+Build environments might be running with different umask settings
+resulting in indeterministic file modes for the files contained in
+kheaders.tar.xz. The file itself is served with 444, i.e. world
+readable. Archive the files explicitly with 744,a+X to improve
+reproducibility across build environments.
+
+--mode=0444 is not suitable as directories need to be executable. Also,
+444 makes it hard to delete all the readonly files after extraction.
+
+Cc: stable@vger.kernel.org
+Signed-off-by: Matthias Maennich <maennich@google.com>
+Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/gen_kheaders.sh |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/kernel/gen_kheaders.sh
++++ b/kernel/gen_kheaders.sh
+@@ -89,7 +89,7 @@ find $cpio_dir -type f -print0 |
+ # Create archive and try to normalize metadata for reproducibility.
+ tar "${KBUILD_BUILD_TIMESTAMP:+--mtime=$KBUILD_BUILD_TIMESTAMP}" \
+-    --owner=0 --group=0 --sort=name --numeric-owner \
++    --owner=0 --group=0 --sort=name --numeric-owner --mode=u=rw,go=r,a+X \
+     -I $XZ -cf $tarfile -C $cpio_dir/ . > /dev/null
+ echo $headers_md5 > kernel/kheaders.md5
diff --git a/queue-6.6/null_blk-print-correct-max-open-zones-limit-in-null_init_zoned_dev.patch b/queue-6.6/null_blk-print-correct-max-open-zones-limit-in-null_init_zoned_dev.patch
new file mode 100644 (file)
index 0000000..96e4819
--- /dev/null
@@ -0,0 +1,34 @@
+From 233e27b4d21c3e44eb863f03e566d3a22e81a7ae Mon Sep 17 00:00:00 2001
+From: Damien Le Moal <dlemoal@kernel.org>
+Date: Tue, 28 May 2024 15:28:52 +0900
+Subject: null_blk: Print correct max open zones limit in null_init_zoned_dev()
+
+From: Damien Le Moal <dlemoal@kernel.org>
+
+commit 233e27b4d21c3e44eb863f03e566d3a22e81a7ae upstream.
+
+When changing the maximum number of open zones, print that number
+instead of the total number of zones.
+
+Fixes: dc4d137ee3b7 ("null_blk: add support for max open/active zone limit for zoned devices")
+Cc: stable@vger.kernel.org
+Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
+Reviewed-by: Niklas Cassel <cassel@kernel.org>
+Link: https://lore.kernel.org/r/20240528062852.437599-1-dlemoal@kernel.org
+Signed-off-by: Jens Axboe <axboe@kernel.dk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/block/null_blk/zoned.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/block/null_blk/zoned.c
++++ b/drivers/block/null_blk/zoned.c
+@@ -112,7 +112,7 @@ int null_init_zoned_dev(struct nullb_dev
+       if (dev->zone_max_active && dev->zone_max_open > dev->zone_max_active) {
+               dev->zone_max_open = dev->zone_max_active;
+               pr_info("changed the maximum number of open zones to %u\n",
+-                      dev->nr_zones);
++                      dev->zone_max_open);
+       } else if (dev->zone_max_open >= dev->nr_zones - dev->zone_nr_conv) {
+               dev->zone_max_open = 0;
+               pr_info("zone_max_open limit disabled, limit >= zone count\n");
diff --git a/queue-6.6/perf-auxtrace-fix-multiple-use-of-itrace-option.patch b/queue-6.6/perf-auxtrace-fix-multiple-use-of-itrace-option.patch
new file mode 100644 (file)
index 0000000..840c40f
--- /dev/null
@@ -0,0 +1,66 @@
+From bb69c912c4e8005cf1ee6c63782d2fc28838dee2 Mon Sep 17 00:00:00 2001
+From: Adrian Hunter <adrian.hunter@intel.com>
+Date: Fri, 15 Mar 2024 09:13:34 +0200
+Subject: perf auxtrace: Fix multiple use of --itrace option
+
+From: Adrian Hunter <adrian.hunter@intel.com>
+
+commit bb69c912c4e8005cf1ee6c63782d2fc28838dee2 upstream.
+
+If the --itrace option is used more than once, the options are
+combined, but "i" and "y" (sub-)options can be corrupted because
+itrace_do_parse_synth_opts() incorrectly overwrites the period type and
+period with default values.
+
+For example, with:
+
+       --itrace=i0ns --itrace=e
+
+The processing of "--itrace=e", resets the "i" period from 0 nanoseconds
+to the default 100 microseconds.
+
+Fix by performing the default setting of period type and period only if
+"i" or "y" are present in the currently processed --itrace value.
+
+Fixes: f6986c95af84ff2a ("perf session: Add instruction tracing options")
+Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
+Cc: Adrian Hunter <adrian.hunter@intel.com>
+Cc: Andi Kleen <ak@linux.intel.com>
+Cc: Ian Rogers <irogers@google.com>
+Cc: Jiri Olsa <jolsa@kernel.org>
+Cc: Namhyung Kim <namhyung@kernel.org>
+Cc: stable@vger.kernel.org
+Link: https://lore.kernel.org/r/20240315071334.3478-2-adrian.hunter@intel.com
+Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/perf/util/auxtrace.c |    4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/tools/perf/util/auxtrace.c
++++ b/tools/perf/util/auxtrace.c
+@@ -1466,6 +1466,7 @@ int itrace_do_parse_synth_opts(struct it
+       char *endptr;
+       bool period_type_set = false;
+       bool period_set = false;
++      bool iy = false;
+       synth_opts->set = true;
+@@ -1484,6 +1485,7 @@ int itrace_do_parse_synth_opts(struct it
+               switch (*p++) {
+               case 'i':
+               case 'y':
++                      iy = true;
+                       if (p[-1] == 'y')
+                               synth_opts->cycles = true;
+                       else
+@@ -1646,7 +1648,7 @@ int itrace_do_parse_synth_opts(struct it
+               }
+       }
+ out:
+-      if (synth_opts->instructions || synth_opts->cycles) {
++      if (iy) {
+               if (!period_type_set)
+                       synth_opts->period_type =
+                                       PERF_ITRACE_DEFAULT_PERIOD_TYPE;
diff --git a/queue-6.6/perf-core-fix-missing-wakeup-when-waiting-for-context-reference.patch b/queue-6.6/perf-core-fix-missing-wakeup-when-waiting-for-context-reference.patch
new file mode 100644 (file)
index 0000000..3281328
--- /dev/null
@@ -0,0 +1,106 @@
+From 74751ef5c1912ebd3e65c3b65f45587e05ce5d36 Mon Sep 17 00:00:00 2001
+From: Haifeng Xu <haifeng.xu@shopee.com>
+Date: Mon, 13 May 2024 10:39:48 +0000
+Subject: perf/core: Fix missing wakeup when waiting for context reference
+
+From: Haifeng Xu <haifeng.xu@shopee.com>
+
+commit 74751ef5c1912ebd3e65c3b65f45587e05ce5d36 upstream.
+
+In our production environment, we found many hung tasks which are
+blocked for more than 18 hours. Their call traces are like this:
+
+[346278.191038] __schedule+0x2d8/0x890
+[346278.191046] schedule+0x4e/0xb0
+[346278.191049] perf_event_free_task+0x220/0x270
+[346278.191056] ? init_wait_var_entry+0x50/0x50
+[346278.191060] copy_process+0x663/0x18d0
+[346278.191068] kernel_clone+0x9d/0x3d0
+[346278.191072] __do_sys_clone+0x5d/0x80
+[346278.191076] __x64_sys_clone+0x25/0x30
+[346278.191079] do_syscall_64+0x5c/0xc0
+[346278.191083] ? syscall_exit_to_user_mode+0x27/0x50
+[346278.191086] ? do_syscall_64+0x69/0xc0
+[346278.191088] ? irqentry_exit_to_user_mode+0x9/0x20
+[346278.191092] ? irqentry_exit+0x19/0x30
+[346278.191095] ? exc_page_fault+0x89/0x160
+[346278.191097] ? asm_exc_page_fault+0x8/0x30
+[346278.191102] entry_SYSCALL_64_after_hwframe+0x44/0xae
+
+The task was waiting for the refcount become to 1, but from the vmcore,
+we found the refcount has already been 1. It seems that the task didn't
+get woken up by perf_event_release_kernel() and got stuck forever. The
+below scenario may cause the problem.
+
+Thread A                                       Thread B
+...                                            ...
+perf_event_free_task                           perf_event_release_kernel
+                                                  ...
+                                                  acquire event->child_mutex
+                                                  ...
+                                                  get_ctx
+   ...                                            release event->child_mutex
+   acquire ctx->mutex
+   ...
+   perf_free_event (acquire/release event->child_mutex)
+   ...
+   release ctx->mutex
+   wait_var_event
+                                                  acquire ctx->mutex
+                                                  acquire event->child_mutex
+                                                  # move existing events to free_list
+                                                  release event->child_mutex
+                                                  release ctx->mutex
+                                                  put_ctx
+...                                            ...
+
+In this case, all events of the ctx have been freed, so we couldn't
+find the ctx in free_list and Thread A will miss the wakeup. It's thus
+necessary to add a wakeup after dropping the reference.
+
+Fixes: 1cf8dfe8a661 ("perf/core: Fix race between close() and fork()")
+Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
+Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
+Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
+Acked-by: Mark Rutland <mark.rutland@arm.com>
+Cc: stable@vger.kernel.org
+Link: https://lkml.kernel.org/r/20240513103948.33570-1-haifeng.xu@shopee.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/events/core.c |   13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -5353,6 +5353,7 @@ int perf_event_release_kernel(struct per
+ again:
+       mutex_lock(&event->child_mutex);
+       list_for_each_entry(child, &event->child_list, child_list) {
++              void *var = NULL;
+               /*
+                * Cannot change, child events are not migrated, see the
+@@ -5393,11 +5394,23 @@ again:
+                        * this can't be the last reference.
+                        */
+                       put_event(event);
++              } else {
++                      var = &ctx->refcount;
+               }
+               mutex_unlock(&event->child_mutex);
+               mutex_unlock(&ctx->mutex);
+               put_ctx(ctx);
++
++              if (var) {
++                      /*
++                       * If perf_event_free_task() has deleted all events from the
++                       * ctx while the child_mutex got released above, make sure to
++                       * notify about the preceding put_ctx().
++                       */
++                      smp_mb(); /* pairs with wait_var_event() */
++                      wake_up_var(var);
++              }
+               goto again;
+       }
+       mutex_unlock(&event->child_mutex);
diff --git a/queue-6.6/riscv-fix-overlap-of-allocated-page-and-ptr_err.patch b/queue-6.6/riscv-fix-overlap-of-allocated-page-and-ptr_err.patch
new file mode 100644 (file)
index 0000000..72fc0fe
--- /dev/null
@@ -0,0 +1,69 @@
+From 994af1825a2aa286f4903ff64a1c7378b52defe6 Mon Sep 17 00:00:00 2001
+From: Nam Cao <namcao@linutronix.de>
+Date: Thu, 25 Apr 2024 13:52:01 +0200
+Subject: riscv: fix overlap of allocated page and PTR_ERR
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Nam Cao <namcao@linutronix.de>
+
+commit 994af1825a2aa286f4903ff64a1c7378b52defe6 upstream.
+
+On riscv32, it is possible for the last page in virtual address space
+(0xfffff000) to be allocated. This page overlaps with PTR_ERR, so that
+shouldn't happen.
+
+There is already some code to ensure memblock won't allocate the last page.
+However, buddy allocator is left unchecked.
+
+Fix this by reserving physical memory that would be mapped at virtual
+addresses greater than 0xfffff000.
+
+Reported-by: Björn Töpel <bjorn@kernel.org>
+Closes: https://lore.kernel.org/linux-riscv/878r1ibpdn.fsf@all.your.base.are.belong.to.us
+Fixes: 76d2a0493a17 ("RISC-V: Init and Halt Code")
+Signed-off-by: Nam Cao <namcao@linutronix.de>
+Cc: <stable@vger.kernel.org>
+Tested-by: Björn Töpel <bjorn@rivosinc.com>
+Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
+Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
+Link: https://lore.kernel.org/r/20240425115201.3044202-1-namcao@linutronix.de
+Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/riscv/mm/init.c |   21 +++++++++++----------
+ 1 file changed, 11 insertions(+), 10 deletions(-)
+
+--- a/arch/riscv/mm/init.c
++++ b/arch/riscv/mm/init.c
+@@ -234,18 +234,19 @@ static void __init setup_bootmem(void)
+               kernel_map.va_pa_offset = PAGE_OFFSET - phys_ram_base;
+       /*
+-       * memblock allocator is not aware of the fact that last 4K bytes of
+-       * the addressable memory can not be mapped because of IS_ERR_VALUE
+-       * macro. Make sure that last 4k bytes are not usable by memblock
+-       * if end of dram is equal to maximum addressable memory.  For 64-bit
+-       * kernel, this problem can't happen here as the end of the virtual
+-       * address space is occupied by the kernel mapping then this check must
+-       * be done as soon as the kernel mapping base address is determined.
++       * Reserve physical address space that would be mapped to virtual
++       * addresses greater than (void *)(-PAGE_SIZE) because:
++       *  - This memory would overlap with ERR_PTR
++       *  - This memory belongs to high memory, which is not supported
++       *
++       * This is not applicable to 64-bit kernel, because virtual addresses
++       * after (void *)(-PAGE_SIZE) are not linearly mapped: they are
++       * occupied by kernel mapping. Also it is unrealistic for high memory
++       * to exist on 64-bit platforms.
+        */
+       if (!IS_ENABLED(CONFIG_64BIT)) {
+-              max_mapped_addr = __pa(~(ulong)0);
+-              if (max_mapped_addr == (phys_ram_end - 1))
+-                      memblock_set_current_limit(max_mapped_addr - 4096);
++              max_mapped_addr = __va_to_pa_nodebug(-PAGE_SIZE);
++              memblock_reserve(max_mapped_addr, (phys_addr_t)-max_mapped_addr);
+       }
+       min_low_pfn = PFN_UP(phys_ram_base);
index 41a9165d1e90f3af616984e52baf33bea5cd4e1b..044d1ce42834957a49e04731ac72873b2d2adee6 100644 (file)
@@ -196,3 +196,18 @@ drm-exynos-hdmi-report-safe-640x480-mode-as-a-fallback-when-no-edid-found.patch
 mptcp-ensure-snd_una-is-properly-initialized-on-connect.patch
 mptcp-pm-inc-rmaddr-mib-counter-once-per-rm_addr-id.patch
 mptcp-pm-update-add_addr-counters-after-connect.patch
+clkdev-update-clkdev-id-usage-to-allow-for-longer-names.patch
+irqchip-gic-v3-its-fix-potential-race-condition-in-its_vlpi_prop_update.patch
+x86-kexec-fix-bug-with-call-depth-tracking.patch
+x86-amd_nb-check-for-invalid-smn-reads.patch
+perf-core-fix-missing-wakeup-when-waiting-for-context-reference.patch
+perf-auxtrace-fix-multiple-use-of-itrace-option.patch
+riscv-fix-overlap-of-allocated-page-and-ptr_err.patch
+tracing-selftests-fix-kprobe-event-name-test-for-.isra.-functions.patch
+kheaders-explicitly-define-file-modes-for-archived-headers.patch
+null_blk-print-correct-max-open-zones-limit-in-null_init_zoned_dev.patch
+sock_map-avoid-race-between-sock_map_close-and-sk_psock_put.patch
+dma-buf-handle-testing-kthreads-creation-failure.patch
+tracing-add-module_description-to-preemptirq_delay_test.patch
+vmci-prevent-speculation-leaks-by-sanitizing-event-in-event_deliver.patch
+spmi-hisi-spmi-controller-do-not-override-device-identifier.patch
diff --git a/queue-6.6/sock_map-avoid-race-between-sock_map_close-and-sk_psock_put.patch b/queue-6.6/sock_map-avoid-race-between-sock_map_close-and-sk_psock_put.patch
new file mode 100644 (file)
index 0000000..53f4a64
--- /dev/null
@@ -0,0 +1,115 @@
+From 4b4647add7d3c8530493f7247d11e257ee425bf0 Mon Sep 17 00:00:00 2001
+From: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
+Date: Fri, 24 May 2024 11:47:02 -0300
+Subject: sock_map: avoid race between sock_map_close and sk_psock_put
+
+From: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
+
+commit 4b4647add7d3c8530493f7247d11e257ee425bf0 upstream.
+
+sk_psock_get will return NULL if the refcount of psock has gone to 0, which
+will happen when the last call of sk_psock_put is done. However,
+sk_psock_drop may not have finished yet, so the close callback will still
+point to sock_map_close despite psock being NULL.
+
+This can be reproduced with a thread deleting an element from the sock map,
+while the second one creates a socket, adds it to the map and closes it.
+
+That will trigger the WARN_ON_ONCE:
+
+------------[ cut here ]------------
+WARNING: CPU: 1 PID: 7220 at net/core/sock_map.c:1701 sock_map_close+0x2a2/0x2d0 net/core/sock_map.c:1701
+Modules linked in:
+CPU: 1 PID: 7220 Comm: syz-executor380 Not tainted 6.9.0-syzkaller-07726-g3c999d1ae3c7 #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
+RIP: 0010:sock_map_close+0x2a2/0x2d0 net/core/sock_map.c:1701
+Code: df e8 92 29 88 f8 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 79 29 88 f8 4c 8b 23 eb 89 e8 4f 15 23 f8 90 <0f> 0b 90 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 13 26 3d 02
+RSP: 0018:ffffc9000441fda8 EFLAGS: 00010293
+RAX: ffffffff89731ae1 RBX: ffffffff94b87540 RCX: ffff888029470000
+RDX: 0000000000000000 RSI: ffffffff8bcab5c0 RDI: ffffffff8c1faba0
+RBP: 0000000000000000 R08: ffffffff92f9b61f R09: 1ffffffff25f36c3
+R10: dffffc0000000000 R11: fffffbfff25f36c4 R12: ffffffff89731840
+R13: ffff88804b587000 R14: ffff88804b587000 R15: ffffffff89731870
+FS:  000055555e080380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000000000000 CR3: 00000000207d4000 CR4: 0000000000350ef0
+Call Trace:
+ <TASK>
+ unix_release+0x87/0xc0 net/unix/af_unix.c:1048
+ __sock_release net/socket.c:659 [inline]
+ sock_close+0xbe/0x240 net/socket.c:1421
+ __fput+0x42b/0x8a0 fs/file_table.c:422
+ __do_sys_close fs/open.c:1556 [inline]
+ __se_sys_close fs/open.c:1541 [inline]
+ __x64_sys_close+0x7f/0x110 fs/open.c:1541
+ do_syscall_x64 arch/x86/entry/common.c:52 [inline]
+ do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
+ entry_SYSCALL_64_after_hwframe+0x77/0x7f
+RIP: 0033:0x7fb37d618070
+Code: 00 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d4 e8 10 2c 00 00 80 3d 31 f0 07 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
+RSP: 002b:00007ffcd4a525d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
+RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fb37d618070
+RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000004
+RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000100000000
+R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
+R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
+ </TASK>
+
+Use sk_psock, which will only check that the pointer is not been set to
+NULL yet, which should only happen after the callbacks are restored. If,
+then, a reference can still be gotten, we may call sk_psock_stop and cancel
+psock->work.
+
+As suggested by Paolo Abeni, reorder the condition so the control flow is
+less convoluted.
+
+After that change, the reproducer does not trigger the WARN_ON_ONCE
+anymore.
+
+Suggested-by: Paolo Abeni <pabeni@redhat.com>
+Reported-by: syzbot+07a2e4a1a57118ef7355@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=07a2e4a1a57118ef7355
+Fixes: aadb2bb83ff7 ("sock_map: Fix a potential use-after-free in sock_map_close()")
+Fixes: 5b4a79ba65a1 ("bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself")
+Cc: stable@vger.kernel.org
+Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
+Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
+Link: https://lore.kernel.org/r/20240524144702.1178377-1-cascardo@igalia.com
+Signed-off-by: Paolo Abeni <pabeni@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/core/sock_map.c |   16 ++++++++++------
+ 1 file changed, 10 insertions(+), 6 deletions(-)
+
+--- a/net/core/sock_map.c
++++ b/net/core/sock_map.c
+@@ -1639,19 +1639,23 @@ void sock_map_close(struct sock *sk, lon
+       lock_sock(sk);
+       rcu_read_lock();
+-      psock = sk_psock_get(sk);
+-      if (unlikely(!psock)) {
+-              rcu_read_unlock();
+-              release_sock(sk);
+-              saved_close = READ_ONCE(sk->sk_prot)->close;
+-      } else {
++      psock = sk_psock(sk);
++      if (likely(psock)) {
+               saved_close = psock->saved_close;
+               sock_map_remove_links(sk, psock);
++              psock = sk_psock_get(sk);
++              if (unlikely(!psock))
++                      goto no_psock;
+               rcu_read_unlock();
+               sk_psock_stop(psock);
+               release_sock(sk);
+               cancel_delayed_work_sync(&psock->work);
+               sk_psock_put(sk, psock);
++      } else {
++              saved_close = READ_ONCE(sk->sk_prot)->close;
++no_psock:
++              rcu_read_unlock();
++              release_sock(sk);
+       }
+       /* Make sure we do not recurse. This is a bug.
diff --git a/queue-6.6/spmi-hisi-spmi-controller-do-not-override-device-identifier.patch b/queue-6.6/spmi-hisi-spmi-controller-do-not-override-device-identifier.patch
new file mode 100644 (file)
index 0000000..f0ac9e4
--- /dev/null
@@ -0,0 +1,36 @@
+From eda4923d78d634482227c0b189d9b7ca18824146 Mon Sep 17 00:00:00 2001
+From: Vamshi Gajjela <vamshigajjela@google.com>
+Date: Tue, 7 May 2024 14:07:41 -0700
+Subject: spmi: hisi-spmi-controller: Do not override device identifier
+
+From: Vamshi Gajjela <vamshigajjela@google.com>
+
+commit eda4923d78d634482227c0b189d9b7ca18824146 upstream.
+
+'nr' member of struct spmi_controller, which serves as an identifier
+for the controller/bus. This value is a dynamic ID assigned in
+spmi_controller_alloc, and overriding it from the driver results in an
+ida_free error "ida_free called for id=xx which is not allocated".
+
+Signed-off-by: Vamshi Gajjela <vamshigajjela@google.com>
+Fixes: 70f59c90c819 ("staging: spmi: add Hikey 970 SPMI controller driver")
+Cc: stable@vger.kernel.org
+Link: https://lore.kernel.org/r/20240228185116.1269-1-vamshigajjela@google.com
+Signed-off-by: Stephen Boyd <sboyd@kernel.org>
+Link: https://lore.kernel.org/r/20240507210809.3479953-5-sboyd@kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/spmi/hisi-spmi-controller.c |    1 -
+ 1 file changed, 1 deletion(-)
+
+--- a/drivers/spmi/hisi-spmi-controller.c
++++ b/drivers/spmi/hisi-spmi-controller.c
+@@ -303,7 +303,6 @@ static int spmi_controller_probe(struct
+       spin_lock_init(&spmi_controller->lock);
+-      ctrl->nr = spmi_controller->channel;
+       ctrl->dev.parent = pdev->dev.parent;
+       ctrl->dev.of_node = of_node_get(pdev->dev.of_node);
diff --git a/queue-6.6/tracing-add-module_description-to-preemptirq_delay_test.patch b/queue-6.6/tracing-add-module_description-to-preemptirq_delay_test.patch
new file mode 100644 (file)
index 0000000..6351460
--- /dev/null
@@ -0,0 +1,34 @@
+From 23748e3e0fbfe471eff5ce439921629f6a427828 Mon Sep 17 00:00:00 2001
+From: Jeff Johnson <quic_jjohnson@quicinc.com>
+Date: Sat, 18 May 2024 15:54:49 -0700
+Subject: tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test
+
+From: Jeff Johnson <quic_jjohnson@quicinc.com>
+
+commit 23748e3e0fbfe471eff5ce439921629f6a427828 upstream.
+
+Fix the 'make W=1' warning:
+
+WARNING: modpost: missing MODULE_DESCRIPTION() in kernel/trace/preemptirq_delay_test.o
+
+Link: https://lore.kernel.org/linux-trace-kernel/20240518-md-preemptirq_delay_test-v1-1-387d11b30d85@quicinc.com
+
+Cc: stable@vger.kernel.org
+Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Fixes: f96e8577da10 ("lib: Add module for testing preemptoff/irqsoff latency tracers")
+Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
+Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/trace/preemptirq_delay_test.c |    1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/kernel/trace/preemptirq_delay_test.c
++++ b/kernel/trace/preemptirq_delay_test.c
+@@ -215,4 +215,5 @@ static void __exit preemptirq_delay_exit
+ module_init(preemptirq_delay_init)
+ module_exit(preemptirq_delay_exit)
++MODULE_DESCRIPTION("Preempt / IRQ disable delay thread to test latency tracers");
+ MODULE_LICENSE("GPL v2");
diff --git a/queue-6.6/tracing-selftests-fix-kprobe-event-name-test-for-.isra.-functions.patch b/queue-6.6/tracing-selftests-fix-kprobe-event-name-test-for-.isra.-functions.patch
new file mode 100644 (file)
index 0000000..18c3db0
--- /dev/null
@@ -0,0 +1,50 @@
+From 23a4b108accc29a6125ed14de4a044689ffeda78 Mon Sep 17 00:00:00 2001
+From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
+Date: Mon, 20 May 2024 20:57:37 -0400
+Subject: tracing/selftests: Fix kprobe event name test for .isra. functions
+
+From: Steven Rostedt (Google) <rostedt@goodmis.org>
+
+commit 23a4b108accc29a6125ed14de4a044689ffeda78 upstream.
+
+The kprobe_eventname.tc test checks if a function with .isra. can have a
+kprobe attached to it. It loops through the kallsyms file for all the
+functions that have the .isra. name, and checks if it exists in the
+available_filter_functions file, and if it does, it uses it to attach a
+kprobe to it.
+
+The issue is that kprobes can not attach to functions that are listed more
+than once in available_filter_functions. With the latest kernel, the
+function that is found is: rapl_event_update.isra.0
+
+  # grep rapl_event_update.isra.0 /sys/kernel/tracing/available_filter_functions
+  rapl_event_update.isra.0
+  rapl_event_update.isra.0
+
+It is listed twice. This causes the attached kprobe to it to fail which in
+turn fails the test. Instead of just picking the function function that is
+found in available_filter_functions, pick the first one that is listed
+only once in available_filter_functions.
+
+Cc: stable@vger.kernel.org
+Fixes: 604e3548236d ("selftests/ftrace: Select an existing function in kprobe_eventname test")
+Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
+Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
+Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc |    3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
++++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
+@@ -30,7 +30,8 @@ find_dot_func() {
+       fi
+       grep " [tT] .*\.isra\..*" /proc/kallsyms | cut -f 3 -d " " | while read f; do
+-              if grep -s $f available_filter_functions; then
++              cnt=`grep -s $f available_filter_functions | wc -l`;
++              if [ $cnt -eq 1 ]; then
+                       echo $f
+                       break
+               fi
diff --git a/queue-6.6/vmci-prevent-speculation-leaks-by-sanitizing-event-in-event_deliver.patch b/queue-6.6/vmci-prevent-speculation-leaks-by-sanitizing-event-in-event_deliver.patch
new file mode 100644 (file)
index 0000000..bec9e30
--- /dev/null
@@ -0,0 +1,56 @@
+From 8003f00d895310d409b2bf9ef907c56b42a4e0f4 Mon Sep 17 00:00:00 2001
+From: Hagar Gamal Halim Hemdan <hagarhem@amazon.com>
+Date: Tue, 30 Apr 2024 08:59:16 +0000
+Subject: vmci: prevent speculation leaks by sanitizing event in event_deliver()
+
+From: Hagar Gamal Halim Hemdan <hagarhem@amazon.com>
+
+commit 8003f00d895310d409b2bf9ef907c56b42a4e0f4 upstream.
+
+Coverity spotted that event_msg is controlled by user-space,
+event_msg->event_data.event is passed to event_deliver() and used
+as an index without sanitization.
+
+This change ensures that the event index is sanitized to mitigate any
+possibility of speculative information leaks.
+
+This bug was discovered and resolved using Coverity Static Analysis
+Security Testing (SAST) by Synopsys, Inc.
+
+Only compile tested, no access to HW.
+
+Fixes: 1d990201f9bb ("VMCI: event handling implementation.")
+Cc: stable <stable@kernel.org>
+Signed-off-by: Hagar Gamal Halim Hemdan <hagarhem@amazon.com>
+Link: https://lore.kernel.org/stable/20231127193533.46174-1-hagarhem%40amazon.com
+Link: https://lore.kernel.org/r/20240430085916.4753-1-hagarhem@amazon.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/misc/vmw_vmci/vmci_event.c |    6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/drivers/misc/vmw_vmci/vmci_event.c
++++ b/drivers/misc/vmw_vmci/vmci_event.c
+@@ -9,6 +9,7 @@
+ #include <linux/vmw_vmci_api.h>
+ #include <linux/list.h>
+ #include <linux/module.h>
++#include <linux/nospec.h>
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+ #include <linux/rculist.h>
+@@ -86,9 +87,12 @@ static void event_deliver(struct vmci_ev
+ {
+       struct vmci_subscription *cur;
+       struct list_head *subscriber_list;
++      u32 sanitized_event, max_vmci_event;
+       rcu_read_lock();
+-      subscriber_list = &subscriber_array[event_msg->event_data.event];
++      max_vmci_event = ARRAY_SIZE(subscriber_array);
++      sanitized_event = array_index_nospec(event_msg->event_data.event, max_vmci_event);
++      subscriber_list = &subscriber_array[sanitized_event];
+       list_for_each_entry_rcu(cur, subscriber_list, node) {
+               cur->callback(cur->id, &event_msg->event_data,
+                             cur->callback_data);
diff --git a/queue-6.6/x86-amd_nb-check-for-invalid-smn-reads.patch b/queue-6.6/x86-amd_nb-check-for-invalid-smn-reads.patch
new file mode 100644 (file)
index 0000000..238ff9a
--- /dev/null
@@ -0,0 +1,59 @@
+From c625dabbf1c4a8e77e4734014f2fde7aa9071a1f Mon Sep 17 00:00:00 2001
+From: Yazen Ghannam <yazen.ghannam@amd.com>
+Date: Mon, 3 Apr 2023 16:42:44 +0000
+Subject: x86/amd_nb: Check for invalid SMN reads
+
+From: Yazen Ghannam <yazen.ghannam@amd.com>
+
+commit c625dabbf1c4a8e77e4734014f2fde7aa9071a1f upstream.
+
+AMD Zen-based systems use a System Management Network (SMN) that
+provides access to implementation-specific registers.
+
+SMN accesses are done indirectly through an index/data pair in PCI
+config space. The PCI config access may fail and return an error code.
+This would prevent the "read" value from being updated.
+
+However, the PCI config access may succeed, but the return value may be
+invalid. This is in similar fashion to PCI bad reads, i.e. return all
+bits set.
+
+Most systems will return 0 for SMN addresses that are not accessible.
+This is in line with AMD convention that unavailable registers are
+Read-as-Zero/Writes-Ignored.
+
+However, some systems will return a "PCI Error Response" instead. This
+value, along with an error code of 0 from the PCI config access, will
+confuse callers of the amd_smn_read() function.
+
+Check for this condition, clear the return value, and set a proper error
+code.
+
+Fixes: ddfe43cdc0da ("x86/amd_nb: Add SMN and Indirect Data Fabric access for AMD Fam17h")
+Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
+Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
+Cc: stable@vger.kernel.org
+Link: https://lore.kernel.org/r/20230403164244.471141-1-yazen.ghannam@amd.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kernel/amd_nb.c |    9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+--- a/arch/x86/kernel/amd_nb.c
++++ b/arch/x86/kernel/amd_nb.c
+@@ -209,7 +209,14 @@ out:
+ int amd_smn_read(u16 node, u32 address, u32 *value)
+ {
+-      return __amd_smn_rw(node, address, value, false);
++      int err = __amd_smn_rw(node, address, value, false);
++
++      if (PCI_POSSIBLE_ERROR(*value)) {
++              err = -ENODEV;
++              *value = 0;
++      }
++
++      return err;
+ }
+ EXPORT_SYMBOL_GPL(amd_smn_read);
diff --git a/queue-6.6/x86-kexec-fix-bug-with-call-depth-tracking.patch b/queue-6.6/x86-kexec-fix-bug-with-call-depth-tracking.patch
new file mode 100644 (file)
index 0000000..163eb4d
--- /dev/null
@@ -0,0 +1,56 @@
+From 93c1800b3799f17375989b0daf76497dd3e80922 Mon Sep 17 00:00:00 2001
+From: David Kaplan <david.kaplan@amd.com>
+Date: Sun, 2 Jun 2024 13:19:09 -0500
+Subject: x86/kexec: Fix bug with call depth tracking
+
+From: David Kaplan <david.kaplan@amd.com>
+
+commit 93c1800b3799f17375989b0daf76497dd3e80922 upstream.
+
+The call to cc_platform_has() triggers a fault and system crash if call depth
+tracking is active because the GS segment has been reset by load_segments() and
+GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate.
+
+Call cc_platform_has() earlier in the function when GS is still valid.
+
+  [ bp: Massage. ]
+
+Fixes: 5d8213864ade ("x86/retbleed: Add SKL return thunk")
+Signed-off-by: David Kaplan <david.kaplan@amd.com>
+Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
+Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
+Cc: <stable@kernel.org>
+Link: https://lore.kernel.org/r/20240603083036.637-1-bp@kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kernel/machine_kexec_64.c |   11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+--- a/arch/x86/kernel/machine_kexec_64.c
++++ b/arch/x86/kernel/machine_kexec_64.c
+@@ -298,8 +298,15 @@ void machine_kexec_cleanup(struct kimage
+ void machine_kexec(struct kimage *image)
+ {
+       unsigned long page_list[PAGES_NR];
+-      void *control_page;
++      unsigned int host_mem_enc_active;
+       int save_ftrace_enabled;
++      void *control_page;
++
++      /*
++       * This must be done before load_segments() since if call depth tracking
++       * is used then GS must be valid to make any function calls.
++       */
++      host_mem_enc_active = cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT);
+ #ifdef CONFIG_KEXEC_JUMP
+       if (image->preserve_context)
+@@ -361,7 +368,7 @@ void machine_kexec(struct kimage *image)
+                                      (unsigned long)page_list,
+                                      image->start,
+                                      image->preserve_context,
+-                                     cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT));
++                                     host_mem_enc_active);
+ #ifdef CONFIG_KEXEC_JUMP
+       if (image->preserve_context)