jfs: array-index-out-of-bounds fix in dtReadFirst

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[ Upstream commit ca84a2c9be ]

The value of stbl can be sometimes out of bounds due
to a bad filesystem. Added a check with appopriate return
of error code in that case.

Reported-by: syzbot+65fa06e29859e41a83f3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=65fa06e29859e41a83f3
Signed-off-by: Ghanshyam Agrawal <ghanshyam1898@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ghanshyam Agrawal 2024-09-28 14:07:22 +05:30 • committed by Greg Kroah-Hartman

parent 8c1b4fea8d

commit 2eea5fda55

1 changed files with 7 additions and 0 deletions

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fs/jfs/jfs_dtree.c

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