D32726.diff
No OneTemporary
Actions

Size

843 B

Referenced Files

None

Subscribers

None

D32726.diff
View Options

	diff --git a/sys/kern/subr_syscall.c b/sys/kern/subr_syscall.c
	--- a/sys/kern/subr_syscall.c
	+++ b/sys/kern/subr_syscall.c
	@@ -260,9 +260,15 @@
	* the exec event now and then clear TDB_EXEC so that
	* the next stop is reported as a syscall exit by
	* linux_ptrace_status().
	+ *
	+ * We are accessing p->p_pptr without any additional
	+ * locks here: it cannot change while p is kept locked;
	+ * while the debugger could in theory change its ABI
	+ * while tracing another process, the outcome of such
	+ * a race wouln't be deterministic anyway.
	*/
	- if ((td->td_dbgflags & TDB_EXEC) != 0 &&
	- SV_PROC_ABI(td->td_proc) == SV_ABI_LINUX) {
	+ if (traced && (td->td_dbgflags & TDB_EXEC) != 0 &&
	+ SV_PROC_ABI(p->p_pptr) == SV_ABI_LINUX) {
	ptracestop(td, SIGTRAP, NULL);
	td->td_dbgflags &= ~TDB_EXEC;
	}