--- /dev/null
+From 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e Mon Sep 17 00:00:00 2001
+From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
+Date: Wed, 10 May 2023 00:29:56 +0900
+Subject: nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
+
+From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
+
+commit 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e upstream.
+
+During unmount process of nilfs2, nothing holds nilfs_root structure after
+nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since
+nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may
+cause use-after-free read if inodes are left in "garbage_list" and
+released by nilfs_dispose_list() at the end of nilfs_detach_log_writer().
+
+Fix this issue by modifying nilfs_evict_inode() to only clear inode
+without additional metadata changes that use nilfs_root if the file system
+is degraded to read-only or the writer is detached.
+
+Link: https://lkml.kernel.org/r/20230509152956.8313-1-konishi.ryusuke@gmail.com
+Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
+Reported-by: syzbot+78d4495558999f55d1da@syzkaller.appspotmail.com
+Closes: https://lkml.kernel.org/r/00000000000099e5ac05fb1c3b85@google.com
+Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/nilfs2/inode.c | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+--- a/fs/nilfs2/inode.c
++++ b/fs/nilfs2/inode.c
+@@ -930,6 +930,7 @@ void nilfs_evict_inode(struct inode *ino
+ struct nilfs_transaction_info ti;
+ struct super_block *sb = inode->i_sb;
+ struct nilfs_inode_info *ii = NILFS_I(inode);
++ struct the_nilfs *nilfs;
+ int ret;
+
+ if (inode->i_nlink || !ii->i_root || unlikely(is_bad_inode(inode))) {
+@@ -942,6 +943,23 @@ void nilfs_evict_inode(struct inode *ino
+
+ truncate_inode_pages_final(&inode->i_data);
+
++ nilfs = sb->s_fs_info;
++ if (unlikely(sb_rdonly(sb) || !nilfs->ns_writer)) {
++ /*
++ * If this inode is about to be disposed after the file system
++ * has been degraded to read-only due to file system corruption
++ * or after the writer has been detached, do not make any
++ * changes that cause writes, just clear it.
++ * Do this check after read-locking ns_segctor_sem by
++ * nilfs_transaction_begin() in order to avoid a race with
++ * the writer detach operation.
++ */
++ clear_inode(inode);
++ nilfs_clear_inode(inode);
++ nilfs_transaction_abort(sb);
++ return;
++ }
++
+ /* TODO: some of the following operations may fail. */
+ nilfs_truncate_bmap(ii, 0);
+ nilfs_mark_inode_dirty(inode);
--- /dev/null
+From 66b2ca086210732954a7790d63d35542936fc664 Mon Sep 17 00:00:00 2001
+From: Michael Ellerman <mpe@ellerman.id.au>
+Date: Thu, 11 May 2023 21:42:24 +1000
+Subject: powerpc/64s/radix: Fix soft dirty tracking
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Michael Ellerman <mpe@ellerman.id.au>
+
+commit 66b2ca086210732954a7790d63d35542936fc664 upstream.
+
+It was reported that soft dirty tracking doesn't work when using the
+Radix MMU.
+
+The tracking is supposed to work by clearing the soft dirty bit for a
+mapping and then write protecting the PTE. If/when the page is written
+to, a page fault occurs and the soft dirty bit is added back via
+pte_mkdirty(). For example in wp_page_reuse():
+
+ entry = maybe_mkwrite(pte_mkdirty(entry), vma);
+ if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1))
+ update_mmu_cache(vma, vmf->address, vmf->pte);
+
+Unfortunately on radix _PAGE_SOFTDIRTY is being dropped by
+radix__ptep_set_access_flags(), called from ptep_set_access_flags(),
+meaning the soft dirty bit is not set even though the page has been
+written to.
+
+Fix it by adding _PAGE_SOFTDIRTY to the set of bits that are able to be
+changed in radix__ptep_set_access_flags().
+
+Fixes: b0b5e9b13047 ("powerpc/mm/radix: Add radix pte #defines")
+Cc: stable@vger.kernel.org # v4.7+
+Reported-by: Dan Horák <dan@danny.cz>
+Link: https://lore.kernel.org/r/20230511095558.56663a50f86bdc4cd97700b7@danny.cz
+Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
+Link: https://msgid.link/20230511114224.977423-1-mpe@ellerman.id.au
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/powerpc/mm/book3s64/radix_pgtable.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
++++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
+@@ -1018,8 +1018,8 @@ void radix__ptep_set_access_flags(struct
+ pte_t entry, unsigned long address, int psize)
+ {
+ struct mm_struct *mm = vma->vm_mm;
+- unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_ACCESSED |
+- _PAGE_RW | _PAGE_EXEC);
++ unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_SOFT_DIRTY |
++ _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);
+
+ unsigned long change = pte_val(entry) ^ pte_val(*ptep);
+ /*
statfs-enforce-statfs-structure-initialization.patch
serial-add-support-for-advantech-pci-1611u-card.patch
ceph-force-updating-the-msg-pointer-in-non-split-case.patch
+tpm-tpm_tis-disable-interrupts-for-more-lenovo-devices.patch
+powerpc-64s-radix-fix-soft-dirty-tracking.patch
+nilfs2-fix-use-after-free-bug-of-nilfs_root-in-nilfs_evict_inode.patch
--- /dev/null
+From e7d3e5c4b1dd50a70b31524c3228c62bb41bbab2 Mon Sep 17 00:00:00 2001
+From: Jerry Snitselaar <jsnitsel@redhat.com>
+Date: Wed, 10 May 2023 17:54:03 -0700
+Subject: tpm/tpm_tis: Disable interrupts for more Lenovo devices
+
+From: Jerry Snitselaar <jsnitsel@redhat.com>
+
+commit e7d3e5c4b1dd50a70b31524c3228c62bb41bbab2 upstream.
+
+The P360 Tiny suffers from an irq storm issue like the T490s, so add
+an entry for it to tpm_tis_dmi_table, and force polling. There also
+previously was a report from the previous attempt to enable interrupts
+that involved a ThinkPad L490. So an entry is added for it as well.
+
+Cc: stable@vger.kernel.org
+Reported-by: Peter Zijlstra <peterz@infradead.org> # P360 Tiny
+Closes: https://lore.kernel.org/linux-integrity/20230505130731.GO83892@hirez.programming.kicks-ass.net/
+Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
+Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/char/tpm/tpm_tis.c | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
+
+--- a/drivers/char/tpm/tpm_tis.c
++++ b/drivers/char/tpm/tpm_tis.c
+@@ -83,6 +83,22 @@ static const struct dmi_system_id tpm_ti
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T490s"),
+ },
+ },
++ {
++ .callback = tpm_tis_disable_irq,
++ .ident = "ThinkStation P360 Tiny",
++ .matches = {
++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
++ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P360 Tiny"),
++ },
++ },
++ {
++ .callback = tpm_tis_disable_irq,
++ .ident = "ThinkPad L490",
++ .matches = {
++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
++ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L490"),
++ },
++ },
+ {}
+ };
+
projects / thirdparty / kernel / stable-queue.git / commitdiff
