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do_mount(): fix a leak introduced in 3.9 ("mount: consolidate permission checks")

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Cc: stable@vger.kernel.org
Bisected-by: Michael Leun <lkml20130126@newton.leun.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-05-04 14:40:51 -04:00
parent 0279b3c0ad
commit 0d5cadb87e
1 changed files with 2 additions and 3 deletions
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5
fs/namespace.c
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@ -2284,12 +2284,11 @@ long do_mount(const char *dev_name, const char *dir_name,
retval = security_sb_mount(dev_name, &path,
type_page, flags, data_page);
if (!retval && !may_mount())
retval = -EPERM;
if (retval)
goto dput_out;
if (!may_mount())
return -EPERM;
/* Default to relatime unless overriden */
if (!(flags & MS_NOATIME))
mnt_flags |= MNT_RELATIME;