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| author | Vladis Dronov <vdronov@redhat.com> | 2017-08-02 19:50:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-07 08:34:09 +0200 |
| commit | 9b3dcc98d8df16913d260c8dae64ad6e5bfcb953 (patch) | |
| tree | 8de57aa72f233634cbb68f8f3ab16b3ea6f0a224 /lib/mpi/mpiutil.c | |
| parent | c0c2e7567a34ca48c8a2d1c89d8a7a5ceb647e08 (diff) | |
xfrm: policy: check policy direction value
commit 7bab09631c2a303f87a7eb7e3d69e888673b9b7e upstream.
The 'dir' parameter in xfrm_migrate() is a user-controlled byte which is used
as an array index. This can lead to an out-of-bound access, kernel lockup and
DoS. Add a check for the 'dir' value.
This fixes CVE-2017-11600.
References: https://bugzilla.redhat.com/show_bug.cgi?id=1474928
Fixes: 80c9abaabf42 ("[XFRM]: Extension for dynamic update of endpoint address(es)")
Reported-by: "bo Zhang" <zhangbo5891001@gmail.com>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions