From: Remington Brasga <rbrasga@xxxxxxx> [ Upstream commit b0b2fc815e514221f01384f39fbfbff65d897e1c ] Fix issue with UBSAN throwing shift-out-of-bounds warning. Reported-by: syzbot+e38d703eeb410b17b473@xxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Remington Brasga <rbrasga@xxxxxxx> Signed-off-by: Dave Kleikamp <dave.kleikamp@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/jfs/jfs_dmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c index 5713994328cbc..ccdfa38d7a682 100644 --- a/fs/jfs/jfs_dmap.c +++ b/fs/jfs/jfs_dmap.c @@ -3022,7 +3022,7 @@ static int dbFindBits(u32 word, int l2nb) /* scan the word for nb free bits at nb alignments. */ - for (bitno = 0; mask != 0; bitno += nb, mask >>= nb) { + for (bitno = 0; mask != 0; bitno += nb, mask = (mask >> nb)) { if ((mask & word) == mask) break; } -- 2.43.0