From: Richard Guy Briggs rgb@redhat.com
[ Upstream commit c3f3ea8af44d0c5fba79fe8b198087342d0c7e04 ]
Since audit_proctitle is generated at syscall exit time, its value is used immediately and cached for the next syscall. Since this is the case, then only clear it at task exit time. Otherwise, there is no point in caching the value OR bearing the overhead of regenerating it.
Fixes: 12c5e81d3fd0 ("audit: prepare audit_context for use in calling contexts beyond syscalls") Signed-off-by: Richard Guy Briggs rgb@redhat.com Signed-off-by: Paul Moore paul@paul-moore.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/auditsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 0ee09447ad04..63a6fe99aa3a 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -1016,7 +1016,6 @@ static void audit_reset_context(struct audit_context *ctx) WARN_ON(!list_empty(&ctx->killed_trees)); audit_free_module(ctx); ctx->fds[0] = -1; - audit_proctitle_free(ctx); ctx->type = 0; /* reset last for audit_free_*() */ }
@@ -1077,6 +1076,7 @@ static inline void audit_free_context(struct audit_context *context) { /* resetting is extra work, but it is likely just noise */ audit_reset_context(context); + audit_proctitle_free(context); free_tree_refs(context); kfree(context->filterkey); kfree(context);