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jfs: Fix sanity check in dbMount 

[ Upstream commit 67373ca8404fe57eb1bb4b57f314cff77ce54932 ]

MAXAG is a legitimate value for bmp->db_numag

Fixes: e63866a47556 ("jfs: fix out-of-bounds in dbNextAG() and diAlloc()")

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dave Kleikamp 2024-10-22 09:40:37 -05:00 committed by Greg Kroah-Hartman
parent a94c197d4d
commit f475d8a0cc
1 changed files with 1 additions and 1 deletions
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2
fs/jfs/jfs_dmap.c
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@ -187,7 +187,7 @@ int dbMount(struct inode *ipbmap)
}
bmp->db_numag = le32_to_cpu(dbmp_le->dn_numag);
if (!bmp->db_numag || bmp->db_numag >= MAXAG) {
if (!bmp->db_numag || bmp->db_numag > MAXAG) {
err = -EINVAL;
goto err_release_metapage;
}