diff options
Diffstat (limited to 'nptl/allocatestack.c')
| -rw-r--r-- | nptl/allocatestack.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c index d4f3188f53..6c2367cc89 100644 --- a/nptl/allocatestack.c +++ b/nptl/allocatestack.c @@ -816,10 +816,11 @@ __find_thread_by_id (pid_t tid) } #endif -void +int attribute_hidden __nptl_setxid (struct xid_command *cmdp) { + int result; lll_lock (stack_cache_lock); __xidcmd = cmdp; @@ -891,7 +892,18 @@ __nptl_setxid (struct xid_command *cmdp) cur = cmdp->cntr; } + /* This must be last, otherwise the current thread might not have + permissions to send SIGSETXID syscall to the other threads. */ + result = INTERNAL_SYSCALL_NCS (cmdp->syscall_no, err, 3, + cmdp->id[0], cmdp->id[1], cmdp->id[2]); + if (INTERNAL_SYSCALL_ERROR_P (result, err)) + { + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); + result = -1; + } + lll_unlock (stack_cache_lock); + return result; } static inline void __attribute__((always_inline)) |