From: Eric Sandeen <sandeen@redhat.com>
To: xfs-oss <xfs@oss.sgi.com>
Subject: [PATCH] xfs: bulletfproof xfs_qm_scall_trunc_qfiles()
Date: Mon, 21 Apr 2014 15:45:08 -0500 [thread overview]
Message-ID: <53558354.5040309@redhat.com> (raw)
Coverity noticed that if we sent junk into
xfs_qm_scall_trunc_qfiles(), we could get back an
uninitialized error value. So sanitize the flags we
will accept, and initialize error anyway for good measure.
(This bug may have been introduced via c61a9e39).
Should resolve Coverity CID 1163872.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
---
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 3daf5ea..17ec2c2 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -278,9 +279,10 @@ xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
{
- int error;
+ int error = EINVAL;
- if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
+ if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 ||
+ (flags & ~XFS_DQ_ALLTYPES)) {
xfs_debug(mp, "%s: flags=%x m_qflags=%x",
__func__, flags, mp->m_qflags);
return XFS_ERROR(EINVAL);
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next reply other threads:[~2014-04-21 20:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-21 20:45 Eric Sandeen [this message]
2014-04-22 6:27 ` [PATCH] xfs: bulletfproof xfs_qm_scall_trunc_qfiles() Christoph Hellwig
2014-04-22 12:42 ` Jeff Liu
2014-04-22 15:56 ` Eric Sandeen
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