diff options
| author | James Morris <jmorris@namei.org> | 2006-07-30 23:46:38 -0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-08-02 16:38:23 -0400 |
| commit | a280b89982f48e9a32c6410a37419b12ca88af6b (patch) | |
| tree | bf9cf034ed75a492bf84a73b7be75d94f2782e50 /net/ipv4/tcp.c | |
| parent | e795d092507d571d66f2ec98d3efdc7dd284bf80 (diff) | |
[SECURITY] secmark: nul-terminate secdata
The patch below fixes a problem in the iptables SECMARK target, where
the user-supplied 'selctx' string may not be nul-terminated.
From initial analysis, it seems that the strlen() called from
selinux_string_to_sid() could run until it arbitrarily finds a zero,
and possibly cause a kernel oops before then.
The impact of this appears limited because the operation requires
CAP_NET_ADMIN, which is essentially always root. Also, the module is
not yet in wide use.
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
0 files changed, 0 insertions, 0 deletions