diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/spawni.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/spawni.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/spawni.c b/sysdeps/unix/sysv/linux/spawni.c index f57e92815e..1edf62c6d7 100644 --- a/sysdeps/unix/sysv/linux/spawni.c +++ b/sysdeps/unix/sysv/linux/spawni.c @@ -383,7 +383,11 @@ __spawnix (int *pid, const char *file, args.pidfd = 0; args.xflags = xflags; - internal_signal_block_all (&args.oldmask); + /* Avoid the potential issues if caller sets a SIG_IGN for SIGABRT, calls + abort, and another thread issues posix_spawn just after the sigaction + returns. With default options (not setting POSIX_SPAWN_SETSIGDEF), the + process can still see SIG_DFL for SIGABRT, where it should be SIG_IGN. */ + __abort_lock_rdlock (&args.oldmask); /* The clone flags used will create a new child that will run in the same memory space (CLONE_VM) and the execution of calling thread will be @@ -474,7 +478,7 @@ __spawnix (int *pid, const char *file, if ((ec == 0) && (pid != NULL)) *pid = use_pidfd ? args.pidfd : new_pid; - internal_signal_restore_set (&args.oldmask); + __abort_lock_unlock (&args.oldmask); __pthread_setcancelstate (state, NULL); |