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| author | Corey Minyard <cminyard@mvista.com> | 2017-11-02 11:19:15 -0500 |
|---|---|---|
| committer | Corey Minyard <cminyard@mvista.com> | 2017-11-02 11:19:15 -0500 |
| commit | 6297fabd93f93182245383ba7de56bef829a796b (patch) | |
| tree | 804f5d28ada61b402d56281c9a047308d26347f4 /kernel/exit.c | |
| parent | d7e17fe4f7a7d961cc4375c7d868bd353a039bc7 (diff) | |
| parent | ece1996a21eeb344b49200e627c6660111009c10 (diff) | |
| download | kernel_replicant_linux-6297fabd93f93182245383ba7de56bef829a796b.tar.gz kernel_replicant_linux-6297fabd93f93182245383ba7de56bef829a796b.tar.bz2 kernel_replicant_linux-6297fabd93f93182245383ba7de56bef829a796b.zip | |
Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux into for-next
The IPMI SI driver was split into different pieces, merge the module
tree to accountfor that.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 3481ababd06a..cf28528842bc 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1600,18 +1600,19 @@ SYSCALL_DEFINE5(waitid, int, which, pid_t, upid, struct siginfo __user *, struct waitid_info info = {.status = 0}; long err = kernel_waitid(which, upid, &info, options, ru ? &r : NULL); int signo = 0; + if (err > 0) { signo = SIGCHLD; err = 0; - } - - if (!err) { if (ru && copy_to_user(ru, &r, sizeof(struct rusage))) return -EFAULT; } if (!infop) return err; + if (!access_ok(VERIFY_WRITE, infop, sizeof(*infop))) + goto Efault; + user_access_begin(); unsafe_put_user(signo, &infop->si_signo, Efault); unsafe_put_user(0, &infop->si_errno, Efault); @@ -1723,21 +1724,23 @@ COMPAT_SYSCALL_DEFINE5(waitid, if (err > 0) { signo = SIGCHLD; err = 0; - } - - if (!err && uru) { - /* kernel_waitid() overwrites everything in ru */ - if (COMPAT_USE_64BIT_TIME) - err = copy_to_user(uru, &ru, sizeof(ru)); - else - err = put_compat_rusage(&ru, uru); - if (err) - return -EFAULT; + if (uru) { + /* kernel_waitid() overwrites everything in ru */ + if (COMPAT_USE_64BIT_TIME) + err = copy_to_user(uru, &ru, sizeof(ru)); + else + err = put_compat_rusage(&ru, uru); + if (err) + return -EFAULT; + } } if (!infop) return err; + if (!access_ok(VERIFY_WRITE, infop, sizeof(*infop))) + goto Efault; + user_access_begin(); unsafe_put_user(signo, &infop->si_signo, Efault); unsafe_put_user(0, &infop->si_errno, Efault); |