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authorEric Dumazet <edumazet@google.com>2012-11-25 09:44:29 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-26 17:36:59 -0500
commitb49d3c1e1c948d76d64790abe9acffa9fa747d19 (patch)
treedf232ca487f9abb44f5be051addfe7bc8d96f484 /net/sctp/chunk.c
parente1a676424c290b1c8d757e3860170ac7ecd89af4 (diff)
downloadlinux-b49d3c1e1c948d76d64790abe9acffa9fa747d19.tar.gz
net: ipmr: limit MRT_TABLE identifiers
Name of pimreg devices are built from following format :

char name[IFNAMSIZ]; // IFNAMSIZ == 16

sprintf(name, "pimreg%u", mrt->id);

We must therefore limit mrt->id to 9 decimal digits
or risk a buffer overflow and a crash.

Restrict table identifiers in [0 ... 999999999] interval.

Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/chunk.c')
0 files changed, 0 insertions, 0 deletions