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authorPeter Oskolkov <posk@google.com>2018-12-15 23:27:23 +0100
committerDavid S. Miller <davem@davemloft.net>2018-12-16 21:14:29 +0100
commitec49d83f245453515a9b6e88324e27bbcb69fbae (patch)
treecdad76ac56855e3d4ab4736882c02a34813b2f21 /net/hsr/hsr_framereg.c
parentl2tp: Add protocol field decompression (diff)
downloadlinux-ec49d83f245453515a9b6e88324e27bbcb69fbae.tar.xz
linux-ec49d83f245453515a9b6e88324e27bbcb69fbae.zip
net: dccp: initialize (addr,port) listening hashtable
Commit d9fbc7f6431f "net: tcp: prefer listeners bound to an address" removes port-only listener lookups. This caused segfaults in DCCP lookups because DCCP did not initialize the (addr,port) hashtable. This patch adds said initialization. The only non-trivial issue here is the size of the new hashtable. It seemed reasonable to make it match the size of the port-only hashtable (= INET_LHTABLE_SIZE) that was used previously. Other parameters to inet_hashinfo2_init() match those used in TCP. Tested: syzcaller issues fixed; the second patch in the patchset tests that DCCP lookups work correctly. Fixes: d9fbc7f6431f "net: tcp: prefer listeners bound to an address" Reported-by: syzcaller <syzkaller@googlegroups.com> Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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