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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2015-11-03 12:53:54 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2015-11-03 12:53:54 +1100 |
| commit | 09cb22d2a57b51d7d052dfe508f260abc67b69b6 (patch) | |
| tree | 62713e458b2c302b69648a2bf4723d3f2467e2a1 | |
| parent | 86a21c79745ca97676cbd47f8608839382cc0448 (diff) | |
| download | linux-09cb22d2a57b51d7d052dfe508f260abc67b69b6.tar.bz2 | |
xfs: Plug memory leak in xfs_attrmulti_attr_set
When setting attributes via XFS_IOC_ATTRMULTI_BY_HANDLE, the user-space
buffer is copied into a new kernel-space buffer via memdup_user; that
buffer then isn't freed.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
| -rw-r--r-- | fs/xfs/xfs_ioctl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index ea7d85af5310..e939c20cb4de 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -482,6 +482,7 @@ xfs_attrmulti_attr_set( __uint32_t flags) { unsigned char *kbuf; + int error; if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) return -EPERM; @@ -492,7 +493,9 @@ xfs_attrmulti_attr_set( if (IS_ERR(kbuf)) return PTR_ERR(kbuf); - return xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags); + kfree(kbuf); + return error; } int |