diff options
Diffstat (limited to 'libpthread/nptl/init.c')
| -rw-r--r-- | libpthread/nptl/init.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/libpthread/nptl/init.c b/libpthread/nptl/init.c index 0e1c60cda..09220c220 100644 --- a/libpthread/nptl/init.c +++ b/libpthread/nptl/init.c @@ -64,24 +64,13 @@ static const char nptl_version[] __attribute_used__ = VERSION; static void sigcancel_handler (int sig, siginfo_t *si, void *ctx) { -#ifdef __ASSUME_CORRECT_SI_PID - /* 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); - if (__builtin_expect (pid < 0, 0)) - pid = -pid; -#endif /* Safety check. It would be possible to call this function for other signals and send a signal from another process. This is not correct and might even be a security problem. Try to catch as many incorrect invocations as possible. */ if (sig != SIGCANCEL -#ifdef __ASSUME_CORRECT_SI_PID - /* Kernels before 2.5.75 stored the thread ID and not the process - ID in si_pid so we skip this test. */ - || si->si_pid != pid -#endif + || si->si_pid != getpid() || si->si_code != SI_TKILL) return; @@ -125,24 +114,13 @@ struct xid_command *__xidcmd attribute_hidden; static void sighandler_setxid (int sig, siginfo_t *si, void *ctx) { -#ifdef __ASSUME_CORRECT_SI_PID - /* 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); - if (__builtin_expect (pid < 0, 0)) - pid = -pid; -#endif /* Safety check. It would be possible to call this function for other signals and send a signal from another process. This is not correct and might even be a security problem. Try to catch as many incorrect invocations as possible. */ if (sig != SIGSETXID -#ifdef __ASSUME_CORRECT_SI_PID - /* Kernels before 2.5.75 stored the thread ID and not the process - ID in si_pid so we skip this test. */ - || si->si_pid != pid -#endif + || si->si_pid != getpid() || si->si_code != SI_TKILL) return; @@ -191,7 +169,7 @@ __pthread_initialize_minimal_internal (void) /* Minimal initialization of the thread descriptor. */ struct pthread *pd = THREAD_SELF; INTERNAL_SYSCALL_DECL (err); - pd->pid = pd->tid = INTERNAL_SYSCALL (set_tid_address, err, 1, &pd->tid); + pd->tid = INTERNAL_SYSCALL (set_tid_address, err, 1, &pd->tid); THREAD_SETMEM (pd, specific[0], &pd->specific_1stblock[0]); THREAD_SETMEM (pd, user_stack, true); if (LLL_LOCK_INITIALIZER != 0) |