From 2a1b4220685a9d4afa788f3d468d1cffe0e4c6dd Mon Sep 17 00:00:00 2001 From: "Dmitry V. Levin" Date: Wed, 27 Apr 2016 04:56:11 +0300 Subject: parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls commit f0b22d1bb2a37a665a969e95785c75a4f49d1499 upstream. 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. Signed-off-by: Dmitry V. Levin Acked-by: Helge Deller Signed-off-by: Helge Deller [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings --- arch/parisc/kernel/syscall.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 82a52b2fb13f..ed3df443e02d 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -314,7 +314,7 @@ tracesys_next: ldo -16(%r30),%r29 /* Reference param save area */ #endif - comiclr,>>= __NR_Linux_syscalls, %r20, %r0 + comiclr,>> __NR_Linux_syscalls, %r20, %r0 b,n .Lsyscall_nosys LDREGX %r20(%r19), %r19 -- cgit v1.2.3