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Red Hat Bugzilla – Attachment 311453 Details for
Bug 454388
CVE-2008-2931 kernel: missing check before setting mount propagation
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[patch]
Proposed backported patch for RHEL-5.3
rhel5u3-check-privileges-before-setting-mount-propagation.patch (text/plain), 742 bytes, created by
Eugene Teo (Security Response)
on 2008-07-10 07:20:04 UTC
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Description:
Proposed backported patch for RHEL-5.3
Filename:
MIME Type:
Creator:
Eugene Teo (Security Response)
Created:
2008-07-10 07:20:04 UTC
Size:
742 bytes
patch
obsolete
>[RHEL5.3 PATCH] BZ#454393 CVE-2008-2931 missing check before setting mount propagation > >This is for Bugzilla bug #454393. > >Backport of upstream commit ee6f958291e2a768fd727e7a67badfff0b67711a > >This patch adds a missing check for CAP_SYS_ADMIN in do_change_type(). > >Signed-off-by: Eugene Teo <eteo@redhat.com> >--- > fs/namespace.c | 3 +++ > 1 file changed, 3 insertions(+) > >diff --git a/fs/namespace.c b/fs/namespace.c >index 3787282..6702466 100644 >--- a/fs/namespace.c >+++ b/fs/namespace.c >@@ -910,6 +910,9 @@ static int do_change_type(struct nameidata *nd, int flag) > int recurse = flag & MS_REC; > int type = flag & ~MS_REC; > >+ if (!capable(CAP_SYS_ADMIN)) >+ return -EPERM; >+ > if (nd->dentry != nd->mnt->mnt_root) > return -EINVAL; >
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