diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-01-05 11:14:19 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-01-06 10:43:30 -0800 |
| commit | 7e937bb3cbe1f6b9840a43f879aa6e3f1a5e6537 (patch) | |
| tree | 67fbeecb2e15d86e1a9b4d58f0bc5f0b2cbd9de4 /fs | |
| parent | eae44cb341ec49f993867b44398b13c6d28600dc (diff) | |
| download | linux-7e937bb3cbe1f6b9840a43f879aa6e3f1a5e6537.tar.bz2 | |
xfs: warn about inodes with project id of -1
Inodes aren't supposed to have a project id of -1U (aka 4294967295) but
the kernel hasn't always validated FSSETXATTR correctly. Flag this as
something for the sysadmin to check out.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/scrub/inode.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c index 2405b09d03d0..eac15af7b08c 100644 --- a/fs/xfs/scrub/inode.c +++ b/fs/xfs/scrub/inode.c @@ -233,6 +233,7 @@ xchk_dinode( unsigned long long isize; uint64_t flags2; uint32_t nextents; + prid_t prid; uint16_t flags; uint16_t mode; @@ -267,6 +268,7 @@ xchk_dinode( * so just mark this inode for preening. */ xchk_ino_set_preen(sc, ino); + prid = 0; break; case 2: case 3: @@ -279,12 +281,17 @@ xchk_dinode( if (dip->di_projid_hi != 0 && !xfs_has_projid32(mp)) xchk_ino_set_corrupt(sc, ino); + + prid = be16_to_cpu(dip->di_projid_lo); break; default: xchk_ino_set_corrupt(sc, ino); return; } + if (xfs_has_projid32(mp)) + prid |= (prid_t)be16_to_cpu(dip->di_projid_hi) << 16; + /* * di_uid/di_gid -- -1 isn't invalid, but there's no way that * userspace could have created that. @@ -293,6 +300,13 @@ xchk_dinode( dip->di_gid == cpu_to_be32(-1U)) xchk_ino_set_warning(sc, ino); + /* + * project id of -1 isn't supposed to be valid, but the kernel didn't + * always validate that. + */ + if (prid == -1U) + xchk_ino_set_warning(sc, ino); + /* di_format */ switch (dip->di_format) { case XFS_DINODE_FMT_DEV: |