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

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[ Upstream commit 74ecdda682 ]

Currently there is a bound check missing in the dbAdjTree while
accessing the dmt_stree. To add the required check added the bool is_ctl
which is required to determine the size as suggest in the following
commit.
https://lore.kernel.org/linux-kernel-mentees/f9475918-2186-49b8-b801-6f0f9e75f4fa@oracle.com/

Reported-by: syzbot+39ba34a099ac2e9bd3cb@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=39ba34a099ac2e9bd3cb
Signed-off-by: Manas Ghandat <ghandatmanas@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Manas Ghandat 2023-10-17 17:33:56 +05:30 • committed by Greg Kroah-Hartman

parent cab0c265ba

commit 70780914cb

1 changed files with 31 additions and 29 deletions

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fs/jfs/jfs_dmap.c

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