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| author | Dmitry V. Levin <ldv@altlinux.org> | 2016-04-27 04:56:11 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-06-15 23:29:31 +0300 |
| commit | b1a2e529e9b98b800ad54c1f846ea0e0dbc36adf (patch) | |
| tree | cb91c9984abf9545647e7084decabd4085fd000d /arch | |
| parent | a45fa868e0738049b1265cd4238ea744944da87e (diff) | |
| download | linux-b1a2e529e9b98b800ad54c1f846ea0e0dbc36adf.tar.xz | |
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 <ldv@altlinux.org>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/syscall.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 0b8d26d3ba43..7105610ac3fd 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 .Lsyscall_nosys LDREGX %r20(%r19), %r19 |