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Commit 3aa4614da741f10b09559a5675c79e2eff5cccd8

Authored by Patrick McHardy
Committed by David S. Miller
1 parent f7f65d1e8b
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

pkt_sched: fix missing check for packet overrun in qdisc_dump_stab() 

nla_nest_start() might return NULL, causing a NULL pointer dereference.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff

... ... @@ -417,6 +417,8 @@
417 417 struct nlattr *nest;
418 418  
419 419 nest = nla_nest_start(skb, TCA_STAB);
  420 + if (nest == NULL)
  421 + goto nla_put_failure;
420 422 NLA_PUT(skb, TCA_STAB_BASE, sizeof(stab->szopts), &stab->szopts);
421 423 nla_nest_end(skb, nest);
422 424