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authorPaul Mackerras <paulus@samba.org>2006-06-12 17:53:34 +1000
committerPaul Mackerras <paulus@samba.org>2006-06-12 17:53:34 +1000
commit7a0c58d0513c246ac5438ef4a55ce8b93395ae0e (patch)
treed18f58349ced242aa62e622e381e60933f71d451 /arch/powerpc/kernel/signal_64.c
parent6218a761bbc27acc65248c80024875bcc06d52b1 (diff)
parent289a1e995e74734b5ec76ca8a5490058f4fecc24 (diff)
Merge branch 'merge'
Diffstat (limited to 'arch/powerpc/kernel/signal_64.c')
-rw-r--r--arch/powerpc/kernel/signal_64.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 66a5fbe3198..6e75d7ab6d4 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -184,6 +184,8 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
err |= __get_user(v_regs, &sc->v_regs);
if (err)
return err;
+ if (v_regs && !access_ok(VERIFY_READ, v_regs, 34 * sizeof(vector128)))
+ return -EFAULT;
/* Copy 33 vec registers (vr0..31 and vscr) from the stack */
if (v_regs != 0 && (msr & MSR_VEC) != 0)
err |= __copy_from_user(current->thread.vr, v_regs,