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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-27 17:38:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-27 17:38:07 -0700
commitb09331e530777963ed65ce2fdf074b7b077768c7 (patch)
tree0354e5a7bb8ec3a7ae647b5ce71516f6a4979b05 /net/sctp/socket.c
parent4c246edd2550304df5b766cc841584b2bb058843 (diff)
parentd97240552cd98c4b07322f30f66fd9c3ba4171de (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (55 commits) sctp: fix random memory dereference with SCTP_HMAC_IDENT option. sctp: correct bounds check in sctp_setsockopt_auth_key wan: Missing capability checks in sbni_ioctl() e100, fix iomap read qeth: preallocated header account offset qeth: l2 write unicast list to hardware qeth: use -EOPNOTSUPP instead of -ENOTSUPP. ibm_newemac: Don't call dev_mc_add() before device is registered net: don't grab a mutex within a timer context in gianfar forcedeth: fix checksum flag net/usb/mcs7830: add set_mac_address net/usb/mcs7830: new device IDs [netdrvr] smc91x: fix resource removal (null ptr deref) ibmveth: fix bad UDP checksums [netdrvr] hso: dev_kfree_skb crash fix [netdrvr] hso: icon 322 detection fix atl1: disable TSO by default atl1e: multistatement if missing braces igb: remove 82576 quad adapter drivers/net/skfp/ess.c: fix compile warnings ...
Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index afa952e726d..5ffb9dec1c3 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3086,6 +3086,7 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk,
int optlen)
{
struct sctp_hmacalgo *hmacs;
+ u32 idents;
int err;
if (!sctp_auth_enable)
@@ -3103,8 +3104,9 @@ static int sctp_setsockopt_hmac_ident(struct sock *sk,
goto out;
}
- if (hmacs->shmac_num_idents == 0 ||
- hmacs->shmac_num_idents > SCTP_AUTH_NUM_HMACS) {
+ idents = hmacs->shmac_num_idents;
+ if (idents == 0 || idents > SCTP_AUTH_NUM_HMACS ||
+ (idents * sizeof(u16)) > (optlen - sizeof(struct sctp_hmacalgo))) {
err = -EINVAL;
goto out;
}
@@ -3144,7 +3146,7 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
goto out;
}
- if (authkey->sca_keylength > optlen) {
+ if (authkey->sca_keylength > optlen - sizeof(struct sctp_authkey)) {
ret = -EINVAL;
goto out;
}