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Filename Latest commit message Latest commit date
Ryusuke Konishi 64afad73e4 nilfs2: fix kernel bug due to missing clearing of checked flag
commit 41e192ad2779cae0102879612dfe46726e4396aa upstream.

Syzbot reported that in directory operations after nilfs2 detects
filesystem corruption and degrades to read-only,
__block_write_begin_int(), which is called to prepare block writes, may
fail the BUG_ON check for accesses exceeding the folio/page size,
triggering a kernel bug.

This was found to be because the "checked" flag of a page/folio was not
cleared when it was discarded by nilfs2's own routine, which causes the
sanity check of directory entries to be skipped when the directory
page/folio is reloaded.  So, fix that.

This was necessary when the use of nilfs2's own page discard routine was
applied to more than just metadata files.

Link: https://lkml.kernel.org/r/20241017193359.5051-1-konishi.ryusuke@gmail.com
Fixes: 8c26c4e269 ("nilfs2: fix issue with flush kernel thread after remount in RO mode because of driver's internal error or metadata corruption")
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+d6ca2daf692c7a82f959@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d6ca2daf692c7a82f959
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-08 16:20:54 +01:00
arch riscv: Remove unused GENERATING_ASM_OFFSETS 2024-11-08 16:20:54 +01:00
block blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race 2024-11-08 16:20:48 +01:00
certs
crypto
Documentation dt-bindings: gpu: Convert Samsung Image Rotator to dt-schema 2024-11-08 16:20:52 +01:00
drivers staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg() 2024-11-08 16:20:53 +01:00
fs nilfs2: fix kernel bug due to missing clearing of checked flag 2024-11-08 16:20:54 +01:00
include mac80211: Add support to trigger sta disconnect on hardware restart 2024-11-08 16:20:52 +01:00
init
ipc
kernel bpf: Fix out-of-bounds write in trie_get_next_key() 2024-11-08 16:20:52 +01:00
lib debugobjects: Fix conditions in fill_pool() 2024-11-08 16:20:34 +01:00
LICENSES
mm mm/swapfile: skip HugeTLB pages for unuse_vma 2024-11-08 16:20:47 +01:00
net wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower 2024-11-08 16:20:53 +01:00
samples
scripts
security selinux: improve error checking in sel_write_load() 2024-11-08 16:20:52 +01:00
sound ASoC: cs42l51: Fix some error handling paths in cs42l51_probe() 2024-11-08 16:20:52 +01:00
tools usbip: tools: Fix detach_port() invalid port error path 2024-11-08 16:20:53 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-11-08 16:20:47 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap
COPYING
CREDITS
Kbuild
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README

Linux kernel
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