scsi-qla2xxx-remove-check-req_sg_cnt-should-be-equal-to-rsp_sg_cnt.patch
nilfs2-fix-potential-out-of-bounds-memory-access-in-nilfs_find_entry.patch
bcache-revert-replacing-is_err_or_null-with-is_err-again.patch
-x86-kexec-restore-gdt-on-return-from-preserve_context-kexec.patch
bpf-fix-oob-devmap-writes-when-deleting-elements.patch
dma-buf-fix-dma_fence_array_signaled-v4.patch
regmap-detach-regmap-from-dev-on-regmap_exit.patch
+++ /dev/null
-From 07fa619f2a40c221ea27747a3323cabc59ab25eb Mon Sep 17 00:00:00 2001
-From: David Woodhouse <dwmw@amazon.co.uk>
-Date: Thu, 5 Dec 2024 15:05:07 +0000
-Subject: x86/kexec: Restore GDT on return from ::preserve_context kexec
-
-From: David Woodhouse <dwmw@amazon.co.uk>
-
-commit 07fa619f2a40c221ea27747a3323cabc59ab25eb upstream.
-
-The restore_processor_state() function explicitly states that "the asm code
-that gets us here will have restored a usable GDT". That wasn't true in the
-case of returning from a ::preserve_context kexec. Make it so.
-
-Without this, the kernel was depending on the called function to reload a
-GDT which is appropriate for the kernel before returning.
-
-Test program:
-
- #include <unistd.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <linux/kexec.h>
- #include <linux/reboot.h>
- #include <sys/reboot.h>
- #include <sys/syscall.h>
-
- int main (void)
- {
- struct kexec_segment segment = {};
- unsigned char purgatory[] = {
- 0x66, 0xba, 0xf8, 0x03, // mov $0x3f8, %dx
- 0xb0, 0x42, // mov $0x42, %al
- 0xee, // outb %al, (%dx)
- 0xc3, // ret
- };
- int ret;
-
- segment.buf = &purgatory;
- segment.bufsz = sizeof(purgatory);
- segment.mem = (void *)0x400000;
- segment.memsz = 0x1000;
- ret = syscall(__NR_kexec_load, 0x400000, 1, &segment, KEXEC_PRESERVE_CONTEXT);
- if (ret) {
- perror("kexec_load");
- exit(1);
- }
-
- ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
- if (ret) {
- perror("kexec reboot");
- exit(1);
- }
- printf("Success\n");
- return 0;
- }
-
-Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-Cc: stable@vger.kernel.org
-Link: https://lore.kernel.org/r/20241205153343.3275139-2-dwmw2@infradead.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/x86/kernel/relocate_kernel_64.S | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/arch/x86/kernel/relocate_kernel_64.S
-+++ b/arch/x86/kernel/relocate_kernel_64.S
-@@ -229,6 +229,13 @@ SYM_CODE_START_LOCAL_NOALIGN(virtual_map
- movq CR0(%r8), %r8
- movq %rax, %cr3
- movq %r8, %cr0
-+
-+#ifdef CONFIG_KEXEC_JUMP
-+ /* Saved in save_processor_state. */
-+ movq $saved_context, %rax
-+ lgdt saved_context_gdt_desc(%rax)
-+#endif
-+
- movq %rbp, %rax
-
- popf
scsi-ufs-core-sysfs-prevent-div-by-zero.patch
nilfs2-fix-potential-out-of-bounds-memory-access-in-nilfs_find_entry.patch
bcache-revert-replacing-is_err_or_null-with-is_err-again.patch
-x86-kexec-restore-gdt-on-return-from-preserve_context-kexec.patch
bpf-fix-oob-devmap-writes-when-deleting-elements.patch
dma-buf-fix-dma_fence_array_signaled-v4.patch
xsk-fix-oob-map-writes-when-deleting-elements.patch
+++ /dev/null
-From 07fa619f2a40c221ea27747a3323cabc59ab25eb Mon Sep 17 00:00:00 2001
-From: David Woodhouse <dwmw@amazon.co.uk>
-Date: Thu, 5 Dec 2024 15:05:07 +0000
-Subject: x86/kexec: Restore GDT on return from ::preserve_context kexec
-
-From: David Woodhouse <dwmw@amazon.co.uk>
-
-commit 07fa619f2a40c221ea27747a3323cabc59ab25eb upstream.
-
-The restore_processor_state() function explicitly states that "the asm code
-that gets us here will have restored a usable GDT". That wasn't true in the
-case of returning from a ::preserve_context kexec. Make it so.
-
-Without this, the kernel was depending on the called function to reload a
-GDT which is appropriate for the kernel before returning.
-
-Test program:
-
- #include <unistd.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <linux/kexec.h>
- #include <linux/reboot.h>
- #include <sys/reboot.h>
- #include <sys/syscall.h>
-
- int main (void)
- {
- struct kexec_segment segment = {};
- unsigned char purgatory[] = {
- 0x66, 0xba, 0xf8, 0x03, // mov $0x3f8, %dx
- 0xb0, 0x42, // mov $0x42, %al
- 0xee, // outb %al, (%dx)
- 0xc3, // ret
- };
- int ret;
-
- segment.buf = &purgatory;
- segment.bufsz = sizeof(purgatory);
- segment.mem = (void *)0x400000;
- segment.memsz = 0x1000;
- ret = syscall(__NR_kexec_load, 0x400000, 1, &segment, KEXEC_PRESERVE_CONTEXT);
- if (ret) {
- perror("kexec_load");
- exit(1);
- }
-
- ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
- if (ret) {
- perror("kexec reboot");
- exit(1);
- }
- printf("Success\n");
- return 0;
- }
-
-Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-Cc: stable@vger.kernel.org
-Link: https://lore.kernel.org/r/20241205153343.3275139-2-dwmw2@infradead.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/x86/kernel/relocate_kernel_64.S | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/arch/x86/kernel/relocate_kernel_64.S
-+++ b/arch/x86/kernel/relocate_kernel_64.S
-@@ -229,6 +229,13 @@ SYM_CODE_START_LOCAL_NOALIGN(virtual_map
- movq CR0(%r8), %r8
- movq %rax, %cr3
- movq %r8, %cr0
-+
-+#ifdef CONFIG_KEXEC_JUMP
-+ /* Saved in save_processor_state. */
-+ movq $saved_context, %rax
-+ lgdt saved_context_gdt_desc(%rax)
-+#endif
-+
- movq %rbp, %rax
-
- popf
scsi-qla2xxx-remove-check-req_sg_cnt-should-be-equal-to-rsp_sg_cnt.patch
nilfs2-fix-potential-out-of-bounds-memory-access-in-nilfs_find_entry.patch
bcache-revert-replacing-is_err_or_null-with-is_err-again.patch
-x86-kexec-restore-gdt-on-return-from-preserve_context-kexec.patch
dma-buf-fix-dma_fence_array_signaled-v4.patch
regmap-detach-regmap-from-dev-on-regmap_exit.patch
mmc-core-further-prevent-card-detect-during-shutdown.patch
+++ /dev/null
-From 07fa619f2a40c221ea27747a3323cabc59ab25eb Mon Sep 17 00:00:00 2001
-From: David Woodhouse <dwmw@amazon.co.uk>
-Date: Thu, 5 Dec 2024 15:05:07 +0000
-Subject: x86/kexec: Restore GDT on return from ::preserve_context kexec
-
-From: David Woodhouse <dwmw@amazon.co.uk>
-
-commit 07fa619f2a40c221ea27747a3323cabc59ab25eb upstream.
-
-The restore_processor_state() function explicitly states that "the asm code
-that gets us here will have restored a usable GDT". That wasn't true in the
-case of returning from a ::preserve_context kexec. Make it so.
-
-Without this, the kernel was depending on the called function to reload a
-GDT which is appropriate for the kernel before returning.
-
-Test program:
-
- #include <unistd.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <linux/kexec.h>
- #include <linux/reboot.h>
- #include <sys/reboot.h>
- #include <sys/syscall.h>
-
- int main (void)
- {
- struct kexec_segment segment = {};
- unsigned char purgatory[] = {
- 0x66, 0xba, 0xf8, 0x03, // mov $0x3f8, %dx
- 0xb0, 0x42, // mov $0x42, %al
- 0xee, // outb %al, (%dx)
- 0xc3, // ret
- };
- int ret;
-
- segment.buf = &purgatory;
- segment.bufsz = sizeof(purgatory);
- segment.mem = (void *)0x400000;
- segment.memsz = 0x1000;
- ret = syscall(__NR_kexec_load, 0x400000, 1, &segment, KEXEC_PRESERVE_CONTEXT);
- if (ret) {
- perror("kexec_load");
- exit(1);
- }
-
- ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
- if (ret) {
- perror("kexec reboot");
- exit(1);
- }
- printf("Success\n");
- return 0;
- }
-
-Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-Cc: stable@vger.kernel.org
-Link: https://lore.kernel.org/r/20241205153343.3275139-2-dwmw2@infradead.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/x86/kernel/relocate_kernel_64.S | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/arch/x86/kernel/relocate_kernel_64.S
-+++ b/arch/x86/kernel/relocate_kernel_64.S
-@@ -218,6 +218,13 @@ virtual_mapped:
- movq CR0(%r8), %r8
- movq %rax, %cr3
- movq %r8, %cr0
-+
-+#ifdef CONFIG_KEXEC_JUMP
-+ /* Saved in save_processor_state. */
-+ movq $saved_context, %rax
-+ lgdt saved_context_gdt_desc(%rax)
-+#endif
-+
- movq %rbp, %rax
-
- popf
drm-dp_mst-fix-resetting-msg-rx-state-after-topology-removal.patch
drm-amdgpu-hdp5.2-do-a-posting-read-when-flushing-hdp.patch
modpost-add-.irqentry.text-to-other_sections.patch
-x86-kexec-restore-gdt-on-return-from-preserve_context-kexec.patch
bpf-fix-oob-devmap-writes-when-deleting-elements.patch
dma-buf-fix-dma_fence_array_signaled-v4.patch
dma-fence-fix-reference-leak-on-fence-merge-failure-path.patch
+++ /dev/null
-From 07fa619f2a40c221ea27747a3323cabc59ab25eb Mon Sep 17 00:00:00 2001
-From: David Woodhouse <dwmw@amazon.co.uk>
-Date: Thu, 5 Dec 2024 15:05:07 +0000
-Subject: x86/kexec: Restore GDT on return from ::preserve_context kexec
-
-From: David Woodhouse <dwmw@amazon.co.uk>
-
-commit 07fa619f2a40c221ea27747a3323cabc59ab25eb upstream.
-
-The restore_processor_state() function explicitly states that "the asm code
-that gets us here will have restored a usable GDT". That wasn't true in the
-case of returning from a ::preserve_context kexec. Make it so.
-
-Without this, the kernel was depending on the called function to reload a
-GDT which is appropriate for the kernel before returning.
-
-Test program:
-
- #include <unistd.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <linux/kexec.h>
- #include <linux/reboot.h>
- #include <sys/reboot.h>
- #include <sys/syscall.h>
-
- int main (void)
- {
- struct kexec_segment segment = {};
- unsigned char purgatory[] = {
- 0x66, 0xba, 0xf8, 0x03, // mov $0x3f8, %dx
- 0xb0, 0x42, // mov $0x42, %al
- 0xee, // outb %al, (%dx)
- 0xc3, // ret
- };
- int ret;
-
- segment.buf = &purgatory;
- segment.bufsz = sizeof(purgatory);
- segment.mem = (void *)0x400000;
- segment.memsz = 0x1000;
- ret = syscall(__NR_kexec_load, 0x400000, 1, &segment, KEXEC_PRESERVE_CONTEXT);
- if (ret) {
- perror("kexec_load");
- exit(1);
- }
-
- ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
- if (ret) {
- perror("kexec reboot");
- exit(1);
- }
- printf("Success\n");
- return 0;
- }
-
-Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-Cc: stable@vger.kernel.org
-Link: https://lore.kernel.org/r/20241205153343.3275139-2-dwmw2@infradead.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- arch/x86/kernel/relocate_kernel_64.S | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/arch/x86/kernel/relocate_kernel_64.S
-+++ b/arch/x86/kernel/relocate_kernel_64.S
-@@ -239,6 +239,13 @@ SYM_CODE_START_LOCAL_NOALIGN(virtual_map
- movq CR0(%r8), %r8
- movq %rax, %cr3
- movq %r8, %cr0
-+
-+#ifdef CONFIG_KEXEC_JUMP
-+ /* Saved in save_processor_state. */
-+ movq $saved_context, %rax
-+ lgdt saved_context_gdt_desc(%rax)
-+#endif
-+
- movq %rbp, %rax
-
- popf
projects / thirdparty / kernel / stable-queue.git / commitdiff
