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| author | David S. Miller <davem@davemloft.net> | 2018-03-30 19:36:28 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-30 19:36:28 +0300 |
| commit | 52a9692a43b8cbca179d2dd02e714df6f1197932 (patch) | |
| tree | 67df9144cea6262fc7660a1c8cc0556df7bf0a8b /include/linux/vm_sockets.h | |
| parent | a9645b273e22662ebea563eae334eb3e4fc6614e (diff) | |
| parent | c769accdf3d8a103940bea2979b65556718567e9 (diff) | |
| download | linux-52a9692a43b8cbca179d2dd02e714df6f1197932.tar.xz | |
Merge branch 'vlan-fix'
Toshiaki Makita says:
====================
Fix vlan tag handling for vlan packets without ethernet headers
Eric Dumazet reported syzbot found a new bug which leads to underflow of
size argument of memmove(), causing crash[1]. This can be triggered by tun
devices.
The underflow happened because skb_vlan_untag() did not expect vlan packets
without ethernet headers, and tun can produce such packets.
I also checked vlan_insert_inner_tag() and found a similar bug.
This series fixes these problems.
[1] https://marc.info/?l=linux-netdev&m=152221753920510&w=2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/vm_sockets.h')
0 files changed, 0 insertions, 0 deletions