parisc: fix a bug when syscall number of tracee is __NR_Linux_syscalls
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 <ldv@altlinux.org>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index c976ebf..57b4836 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -344,7 +344,7 @@
#endif
cmpib,COND(=),n -1,%r20,tracesys_exit /* seccomp may have returned -1 */
- comiclr,>>= __NR_Linux_syscalls, %r20, %r0
+ comiclr,>> __NR_Linux_syscalls, %r20, %r0
b,n .Ltracesys_nosys
LDREGX %r20(%r19), %r19
