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| author | Dmitry V. Levin <ldv@altlinux.org> | 2016-04-27 04:56:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-05-11 11:21:36 +0200 |
| commit | 60d4c63013b2e24a262742185b562082d1c91cfe (patch) | |
| tree | 239f068b2f1020ed13d93800e2f2ed1a7b294b97 /arch | |
| parent | 20c2b0d977d5f4255d84d82908e29e531e993652 (diff) | |
| download | linux-stable-60d4c63013b2e24a262742185b562082d1c91cfe.tar.gz linux-stable-60d4c63013b2e24a262742185b562082d1c91cfe.tar.bz2 linux-stable-60d4c63013b2e24a262742185b562082d1c91cfe.zip | |
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 c976ebfe2269..57b4836b7ecd 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -344,7 +344,7 @@ tracesys_next: #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 |