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| author | Richard Guy Briggs <rgb@redhat.com> | 2018-12-10 17:17:50 -0500 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2019-01-14 18:01:05 -0500 |
| commit | 9e36a5d49c3a6fc4a2e0ba2dc11b27c4a8ae6303 (patch) | |
| tree | a449f11eeb5c67c0ae57f9eac71a6f8b7be61091 /kernel/auditsc.c | |
| parent | 53fc7a01df51f58b317ea5ab1607a1af65d6d4cf (diff) | |
| download | linux-9e36a5d49c3a6fc4a2e0ba2dc11b27c4a8ae6303.tar.bz2 | |
audit: hand taken context to audit_kill_trees for syscall logging
Since the context is derived from the task parameter handed to
__audit_free(), hand the context to audit_kill_trees() so it can be used
to associate with a syscall record. This requires adding the context
parameter to kill_rules() rather than using the current audit_context.
The callers of trim_marked() and evict_chunk() still have their context.
The EOE record was being issued prior to the pruning of the killed_tree
list.
Move the kill_trees call before the audit_log_exit call in
__audit_free() and __audit_syscall_exit() so that any pruned trees
CONFIG_CHANGE records are included with the associated syscall event by
the user library due to the EOE record flagging the end of the event.
See: https://github.com/linux-audit/audit-kernel/issues/50
See: https://github.com/linux-audit/audit-kernel/issues/59
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: fixed merge fuzz in kernel/audit_tree.c]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'kernel/auditsc.c')
| -rw-r--r-- | kernel/auditsc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 6593a5207fb0..b585ceb2f7a2 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1444,6 +1444,9 @@ void __audit_free(struct task_struct *tsk) if (!context) return; + if (!list_empty(&context->killed_trees)) + audit_kill_trees(context); + /* We are called either by do_exit() or the fork() error handling code; * in the former case tsk == current and in the latter tsk is a * random task_struct that doesn't doesn't have any meaningful data we @@ -1460,9 +1463,6 @@ void __audit_free(struct task_struct *tsk) audit_log_exit(); } - if (!list_empty(&context->killed_trees)) - audit_kill_trees(&context->killed_trees); - audit_set_context(tsk, NULL); audit_free_context(context); } @@ -1537,6 +1537,9 @@ void __audit_syscall_exit(int success, long return_code) if (!context) return; + if (!list_empty(&context->killed_trees)) + audit_kill_trees(context); + if (!context->dummy && context->in_syscall) { if (success) context->return_valid = AUDITSC_SUCCESS; @@ -1571,9 +1574,6 @@ void __audit_syscall_exit(int success, long return_code) context->in_syscall = 0; context->prio = context->state == AUDIT_RECORD_CONTEXT ? ~0ULL : 0; - if (!list_empty(&context->killed_trees)) - audit_kill_trees(&context->killed_trees); - audit_free_names(context); unroll_tree_refs(context, NULL, 0); audit_free_aux(context); |