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| author | Liu Shixin via Jfs-discussion <jfs-discussion@lists.sourceforge.net> | 2022-11-03 11:01:59 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 13:55:16 +0100 |
| commit | 1f4a325933f81bc52d484bb77e3cb415b0272921 (patch) | |
| tree | defd88789ff77296052104d140e5154bccae3e54 /drivers/soc | |
| parent | 6cd37f8232f5e169a723e1d5fbe3b2139c2ef763 (diff) | |
| download | linux-stable-1f4a325933f81bc52d484bb77e3cb415b0272921.tar.gz linux-stable-1f4a325933f81bc52d484bb77e3cb415b0272921.tar.bz2 linux-stable-1f4a325933f81bc52d484bb77e3cb415b0272921.zip | |
fs/jfs: fix shift exponent db_agl2size negative
[ Upstream commit fad376fce0af58deebc5075b8539dc05bf639af3 ]
As a shift exponent, db_agl2size can not be less than 0. Add the missing
check to fix the shift-out-of-bounds bug reported by syzkaller:
UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2227:15
shift exponent -744642816 is negative
Reported-by: syzbot+0be96567042453c0c820@syzkaller.appspotmail.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/soc')
0 files changed, 0 insertions, 0 deletions