diff options
| author | Eric Paris <eparis@redhat.com> | 2009-06-11 14:31:33 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-23 23:50:33 -0400 |
| commit | 35aa901c0b66cb3c2eeee23f13624014825a44a8 (patch) | |
| tree | 5ec19e8b65c1f3e6417c197288c42c60c852ef48 | |
| parent | 4e8a2372f9255a1464ef488ed925455f53fbdaa1 (diff) | |
Audit: fix audit watch use after free
When an audit watch is added to a parent the temporary watch inside the
original krule from userspace is freed. Yet the original watch is used after
the real watch was created in audit_add_rules()
Signed-off-by: Eric Paris <eparis@redhat.com>
| -rw-r--r-- | kernel/auditfilter.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index 713098ee5a02..19c0a0a2cede 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1320,6 +1320,8 @@ static inline int audit_add_rule(struct audit_entry *entry) mutex_unlock(&audit_filter_mutex); goto error; } + /* entry->rule.watch may have changed during audit_add_watch() */ + watch = entry->rule.watch; h = audit_hash_ino((u32)watch->ino); list = &audit_inode_hash[h]; } |