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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-29 13:09:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-29 13:09:40 +0100 |
| commit | 75329f1f0c0e2e2ad611734a2ef08309391a4d9f (patch) | |
| tree | 67ca1a13f51fbf2f5af8557e6ff0bb722efab3e6 /kernel/futex_compat.c | |
| parent | b6b301aa9fba57b114c3a00f5f43abf672bd4ecd (diff) | |
| parent | 3c92ec8ae91ecf59d88c798301833d7cf83f2179 (diff) | |
| download | kernel-crypto-75329f1f0c0e2e2ad611734a2ef08309391a4d9f.tar.gz kernel-crypto-75329f1f0c0e2e2ad611734a2ef08309391a4d9f.tar.xz kernel-crypto-75329f1f0c0e2e2ad611734a2ef08309391a4d9f.zip | |
Merge branch 'linus' into x86/cleanups
Diffstat (limited to 'kernel/futex_compat.c')
| -rw-r--r-- | kernel/futex_compat.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c index 04ac3a9e42c..d607a5b9ee2 100644 --- a/kernel/futex_compat.c +++ b/kernel/futex_compat.c @@ -135,6 +135,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, { struct compat_robust_list_head __user *head; unsigned long ret; + const struct cred *cred = current_cred(), *pcred; if (!futex_cmpxchg_enabled) return -ENOSYS; @@ -150,8 +151,10 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, if (!p) goto err_unlock; ret = -EPERM; - if ((current->euid != p->euid) && (current->euid != p->uid) && - !capable(CAP_SYS_PTRACE)) + pcred = __task_cred(p); + if (cred->euid != pcred->euid && + cred->euid != pcred->uid && + !capable(CAP_SYS_PTRACE)) goto err_unlock; head = p->compat_robust_list; read_unlock(&tasklist_lock); |