From aa7ebd32f9cbc09ccb469701fd58f877dac349ad Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Wed, 27 Apr 2016 04:56:11 +0300 Subject: [PATCH] parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls [ Upstream commit f0b22d1bb2a37a665a969e95785c75a4f49d1499 ] Do not load one entry beyond the end of the syscall table when the syscall number of a traced process equals to __NR_Linux_syscalls. Similar bug with regular processes was fixed by commit 3bb457af4fa8 ("[PARISC] Fix bug when syscall nr is __NR_Linux_syscalls"). This bug was found by strace test suite. Cc: stable@vger.kernel.org Signed-off-by: Dmitry V. Levin Acked-by: Helge Deller Signed-off-by: Helge Deller Signed-off-by: Sasha Levin --- arch/parisc/kernel/syscall.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 02cf40c96fe3..099c23616901 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -342,7 +342,7 @@ tracesys_next: stw %r21, -56(%r30) /* 6th argument */ #endif - comiclr,>>= __NR_Linux_syscalls, %r20, %r0 + comiclr,>> __NR_Linux_syscalls, %r20, %r0 b,n .Ltracesys_nosys LDREGX %r20(%r19), %r19