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| author | Neel Chauhan <nc@FreeBSD.org> | 2021-11-17 00:25:04 +0000 |
|---|---|---|
| committer | Neel Chauhan <nc@FreeBSD.org> | 2021-11-29 17:57:12 +0000 |
| commit | 8facf7082d4973aedc30cdd8e90fbd33beb17d7f (patch) | |
| tree | dc8f4e99aefd0c1329ff660438ae1e9d47043dcf | |
| parent | 09dfa60b58e8a4dcbb82e2060a1f23cadb504474 (diff) | |
| download | src-8facf7082d4973aedc30cdd8e90fbd33beb17d7f.tar.gz src-8facf7082d4973aedc30cdd8e90fbd33beb17d7f.zip | |
ext2fs: check for eh_depth in ext4_ext_check_header()
PR: 259112
Reported by: Robert Morris <rtm@lcs.mit.edu>
Reviewed by: fsu (src)
Differential Revision: https://reviews.freebsd.org/D33030
(cherry picked from commit be60d8f276fa20fc11ad814e54c9c2540f79c7da)
| -rw-r--r-- | sys/fs/ext2fs/ext2_extents.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/fs/ext2fs/ext2_extents.c b/sys/fs/ext2fs/ext2_extents.c index 61c751e9af5e..ba95b8a6f3ae 100644 --- a/sys/fs/ext2fs/ext2_extents.c +++ b/sys/fs/ext2fs/ext2_extents.c @@ -250,6 +250,10 @@ ext4_ext_check_header(struct inode *ip, struct ext4_extent_header *eh) error_msg = "header: invalid eh_entries"; goto corrupted; } + if (eh->eh_depth > 5) { + error_msg = "header: invalid eh_depth"; + goto corrupted; + } return (0); |