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| author |   Horatiu Vultur <horatiu.vultur@microchip.com> | 2020-05-25 09:55:41 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-25 18:09:26 -0700 |
| commit | 617504c67e01d30310558442777a4112ea6d587d (patch) | |
| tree | f1b8a0e03ddac483345cec7e9588abbfe26c79e4 /net/tipc/socket.c | |
| parent | drivers: ipa: print dev_err info accurately (diff) | |
| download | wireguard-linux-617504c67e01d30310558442777a4112ea6d587d.tar.xz wireguard-linux-617504c67e01d30310558442777a4112ea6d587d.zip | |
bridge: mrp: Fix out-of-bounds read in br_mrp_parse
The issue was reported by syzbot. When the function br_mrp_parse was
called with a valid net_bridge_port, the net_bridge was an invalid
pointer. Therefore the check br->stp_enabled could pass/fail
depending where it was pointing in memory.
The fix consists of setting the net_bridge pointer if the port is a
valid pointer.
Reported-by: syzbot+9c6f0f1f8e32223df9a4@syzkaller.appspotmail.com
Fixes: 6536993371fa ("bridge: mrp: Integrate MRP into the bridge")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/socket.c')
0 files changed, 0 insertions, 0 deletions