diff options
Diffstat (limited to 'nptl/nptl-init.c')
| -rw-r--r-- | nptl/nptl-init.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c index 794156ba8e..2796dc5182 100644 --- a/nptl/nptl-init.c +++ b/nptl/nptl-init.c @@ -232,6 +232,7 @@ sighandler_setxid (int sig, siginfo_t *si, void *ctx) /* Determine the process ID. It might be negative if the thread is in the middle of a fork() call. */ pid_t pid = THREAD_GETMEM (THREAD_SELF, pid); + int result; if (__glibc_unlikely (pid < 0)) pid = -pid; @@ -245,8 +246,12 @@ sighandler_setxid (int sig, siginfo_t *si, void *ctx) return; INTERNAL_SYSCALL_DECL (err); - INTERNAL_SYSCALL_NCS (__xidcmd->syscall_no, err, 3, __xidcmd->id[0], - __xidcmd->id[1], __xidcmd->id[2]); + result = INTERNAL_SYSCALL_NCS (__xidcmd->syscall_no, err, 3, __xidcmd->id[0], + __xidcmd->id[1], __xidcmd->id[2]); + if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) + /* Safety check. This should never happen if the setxid system + calls are only ever called through their glibc wrappers. */ + abort (); /* Reset the SETXID flag. */ struct pthread *self = THREAD_SELF; |