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(parent: 93c6476) | patch
net: ipv4: fix for a race condition in raw_sendmsg
authorMohamed Ghannam <simo.ghannam@gmail.com>
Sun, 10 Dec 2017 03:50:58 +0000 (03:50 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 11 Dec 2017 19:05:31 +0000 (14:05 -0500)
commit8f659a03a0ba9289b9aeb9b4470e6fb263d6f483
tree2b962b0543f8306cadba7cd992f3f523834e87a9tree
parent93c647643b48f0131f02e45da3bd367d80443291commit | diff
net: ipv4: fix for a race condition in raw_sendmsg

inet->hdrincl is racy, and could lead to uninitialized stack pointer
usage, so its value should be read only once.

Fixes: c008ba5bdc9f ("ipv4: Avoid reading user iov twice after raw_probe_proto_opt")
Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/raw.c diff | blob | history
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