linux/arch/riscv
Dmitry V. Levin 10a16997db riscv: Fix syscall_get_arguments() and syscall_set_arguments()
RISC-V syscall arguments are located in orig_a0,a1..a5 fields
of struct pt_regs.

Due to an off-by-one bug and a bug in pointer arithmetic
syscall_get_arguments() was reading s3..s7 fields instead of a1..a5.
Likewise, syscall_set_arguments() was writing s3..s7 fields
instead of a1..a5.

Link: http://lkml.kernel.org/r/20190329171221.GA32456@altlinux.org

Fixes: e2c0cdfba7 ("RISC-V: User-facing API")
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: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Cc: stable@vger.kernel.org # v4.15+
Acked-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-04-04 10:25:31 -04:00
..
boot RISC-V: Build flat and compressed kernel images 2018-11-20 05:19:09 -08:00
configs RISC-V: defconfig: Add CRYPTO_DEV_VIRTIO=y 2019-01-23 14:09:01 -08:00
include riscv: Fix syscall_get_arguments() and syscall_set_arguments() 2019-04-04 10:25:31 -04:00
kernel RISC-V Patches for the 5.1 Merge Window, Part 1 2019-03-07 12:52:36 -08:00
lib RISC-V: lib: minor asm cleanup 2018-12-21 08:17:02 -08:00
mm RISC-V: Free-up initrd in free_initrd_mem() 2019-02-21 11:26:50 +05:30
net bpf, riscv: add BPF JIT for RV64G 2019-02-05 16:56:10 +01:00
Kconfig DMA mapping updates for 5.1 2019-03-10 11:54:48 -07:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Makefile bpf, riscv: add BPF JIT for RV64G 2019-02-05 16:56:10 +01:00