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Commit 980dfb0db340b95094732d78b55311f2c539c1af

Authored by zhangxiliang
Committed by Al Viro
1 parent 036bbf76ad
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

[PATCH] Fix the kernel panic of audit_filter_task when key field is set 

When calling audit_filter_task(), it calls audit_filter_rules() with audit_context is NULL.
If the key field is set, the result in audit_filter_rules() will be set to 1 and
ctx->filterkey will be set to key.
But the ctx is NULL in this condition, so kernel will panic.

Signed-off-by: Zhang Xiliang <zhangxiliang@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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

... ... @@ -610,7 +610,7 @@
610 610 if (!result)
611 611 return 0;
612 612 }
613   - if (rule->filterkey)
  613 + if (rule->filterkey && ctx)
614 614 ctx->filterkey = kstrdup(rule->filterkey, GFP_ATOMIC);
615 615 switch (rule->action) {
616 616 case AUDIT_NEVER: *state = AUDIT_DISABLED; break;