f2fs: fix to detect potential corrupted nid in free_nid_list

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[ Upstream commit 8fc6056dcf ]

As reported, on-disk footer.ino and footer.nid is the same and
out-of-range, let's add sanity check on f2fs_alloc_nid() to detect
any potential corruption in free_nid_list.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Chao Yu 2025-08-07 10:44:31 +08:00 • committed by Greg Kroah-Hartman

parent 2e4aee4b61

commit adbcb34f03

2 changed files with 17 additions and 1 deletions

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17

fs/f2fs/node.c

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1

include/linux/f2fs_fs.h

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