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| author | zhangxiliang <zhangxiliang@cn.fujitsu.com> | 2008-08-01 19:15:47 +0800 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-01 12:15:03 -0400 |
| commit | 980dfb0db340b95094732d78b55311f2c539c1af (patch) | |
| tree | 7235e21116a0958591adeaec4e51734cc224094e /kernel/auditsc.c | |
| parent | 036bbf76ad9f83781590623111b80ba0b82930ac (diff) | |
| download | linux-stable-980dfb0db340b95094732d78b55311f2c539c1af.tar.gz linux-stable-980dfb0db340b95094732d78b55311f2c539c1af.tar.bz2 linux-stable-980dfb0db340b95094732d78b55311f2c539c1af.zip | |
[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>
Diffstat (limited to 'kernel/auditsc.c')
| -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 580a5389fd99..496c3dd37276 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; |