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| author | Dmitry V. Levin <ldv@altlinux.org> | 2019-03-29 20:12:30 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-04-04 10:27:17 -0400 |
| commit | ed3bb007021b9bddb90afae28a19f08ed8890add (patch) | |
| tree | b363ee6cad7605b0dd2b8d4f3710cf9e11e1bc5d /lib/syscall.c | |
| parent | 10a16997db3d99fc02c026cf2c6e6c670acafab0 (diff) | |
| download | linux-ed3bb007021b9bddb90afae28a19f08ed8890add.tar.bz2 | |
csky: Fix syscall_get_arguments() and syscall_set_arguments()
C-SKY syscall arguments are located in orig_a0,a1,a2,a3,regs[0],regs[1]
fields of struct pt_regs.
Due to an off-by-one bug and a bug in pointer arithmetic
syscall_get_arguments() was reading orig_a0,regs[1..5] fields instead.
Likewise, syscall_set_arguments() was writing orig_a0,regs[1..5] fields
instead.
Link: http://lkml.kernel.org/r/20190329171230.GB32456@altlinux.org
Fixes: 4859bfca11c7d ("csky: System Call")
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Drewry <wad@chromium.org>
Cc: stable@vger.kernel.org # v4.20+
Tested-by: Guo Ren <ren_guo@c-sky.com>
Acked-by: Guo Ren <ren_guo@c-sky.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'lib/syscall.c')
0 files changed, 0 insertions, 0 deletions