Merge tag 'xtensa-20240117' of https://github.com/jcmvbkbc/linux-xtensa

[linux-block.git] / fs / jfs / jfs_imap.c

diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index a037ee59e39854f662ddfdc03a51d7f0f96a07f6..2ec35889ad24ed03234798bc8fbce1164a0b4a92 100644 (file)
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -2179,6 +2179,9 @@ static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
        /* get the ag and iag numbers for this iag.
         */
        agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi);
+       if (agno >= MAXAG || agno < 0)
+               return -EIO;
+
        iagno = le32_to_cpu(iagp->iagnum);
 
        /* check if this is the last free extent within the