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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 17:56:42 +0000 |
| commit | 5c50e93e6ce43e8558e043de0745bad889c3a77f (patch) | |
| tree | 70cb30b78d9c8968a8fe5694c2d081710a7f7b56 | |
| parent | 23566768d92aed2a59d3e5d9392824cbe83b867f (diff) | |
| download | src-5c50e93e6ce43e8558e043de0745bad889c3a77f.tar.gz src-5c50e93e6ce43e8558e043de0745bad889c3a77f.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 1a5dca66dd76..b33ff9fa8a1a 100644 --- a/sys/fs/ext2fs/ext2_extents.c +++ b/sys/fs/ext2fs/ext2_extents.c @@ -251,6 +251,10 @@ 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); |