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author | zhangxiliang <zhangxiliang@cn.fujitsu.com> | 2008-08-01 11:15:47 (GMT) |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-01 16:15:03 (GMT) |
commit | 980dfb0db340b95094732d78b55311f2c539c1af (patch) | |
tree | 7235e21116a0958591adeaec4e51734cc224094e | |
parent | 036bbf76ad9f83781590623111b80ba0b82930ac (diff) | |
download | linux-980dfb0db340b95094732d78b55311f2c539c1af.tar.xz |
[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>
-rw-r--r-- | kernel/auditsc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 580a538..496c3dd 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -610,7 +610,7 @@ static int audit_filter_rules(struct task_struct *tsk, if (!result) return 0; } - if (rule->filterkey) + if (rule->filterkey && ctx) ctx->filterkey = kstrdup(rule->filterkey, GFP_ATOMIC); switch (rule->action) { case AUDIT_NEVER: *state = AUDIT_DISABLED; break; |