diff options
| author | Neel Chauhan <nc@FreeBSD.org> | 2021-11-17 00:25:04 +0000 |
|---|---|---|
| committer | Neel Chauhan <nc@FreeBSD.org> | 2021-11-18 17:54:42 +0000 |
| commit | be60d8f276fa20fc11ad814e54c9c2540f79c7da (patch) | |
| tree | c8cdd56da6f301a9f445d187945fe320f4d877fc | |
| parent | 9dae2d03bc644be38196cf76c55039af1a7c1ba6 (diff) | |
| download | src-be60d8f276fa20fc11ad814e54c9c2540f79c7da.tar.gz src-be60d8f276fa20fc11ad814e54c9c2540f79c7da.zip | |
ext2fs: check for eh_depth in ext4_ext_check_header()
PR: 259112
Reported by: Robert Morris <rtm@lcs.mit.edu>
Reviewed by: fsu
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D33030
| -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 2a3ffbd0e860..408f1a27ae76 100644 --- a/sys/fs/ext2fs/ext2_extents.c +++ b/sys/fs/ext2fs/ext2_extents.c @@ -297,6 +297,10 @@ 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); |