diff options
| author | Eric Dumazet <edumazet@google.com> | 2012-11-25 09:44:29 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-26 17:36:59 -0500 |
| commit | b49d3c1e1c948d76d64790abe9acffa9fa747d19 (patch) | |
| tree | df232ca487f9abb44f5be051addfe7bc8d96f484 /net/dccp | |
| parent | e1a676424c290b1c8d757e3860170ac7ecd89af4 (diff) | |
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/dccp')
0 files changed, 0 insertions, 0 deletions