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| author |   Paolo Abeni <pabeni@redhat.com> | 2019-02-21 17:43:59 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-02-22 16:05:11 -0800 |
| commit | 424a7cd078401591fc45587ffb2c012d7f402fb7 (patch) | |
| tree | 346f6616db687c22ad228fb260b4e6e47053e9e3 /net/ipv4/udp.c | |
| parent | fou6: fix proto error handler argument type (diff) | |
| download | linux-dev-424a7cd078401591fc45587ffb2c012d7f402fb7.tar.xz linux-dev-424a7cd078401591fc45587ffb2c012d7f402fb7.zip | |
udpv6: fix possible user after free in error handler
Before derefencing the encap pointer, commit e7cc082455cb ("udp: Support
for error handlers of tunnels with arbitrary destination port") checks
for a NULL value, but the two fetch operation can race with removal.
Fix the above using a single access.
Also fix a couple of type annotations, to make sparse happy.
Fixes: e7cc082455cb ("udp: Support for error handlers of tunnels with arbitrary destination port")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
0 files changed, 0 insertions, 0 deletions