[PATCH v1 0/2] cleanup stackprotector canary generation

[Jason A. Donenfeld]

Stack canary generation currently lives partially in random.h, where it
doesn't belong, and is in general a bit overcomplicated. This small
patchset fixes up both issues. I'll take these in my tree, unless
somebody else prefers to do so.

Cc: Albert Ou <aou@xxxxxxxxxxxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Guo Ren <guoren@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-csky@xxxxxxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxxx
Cc: linux-riscv@xxxxxxxxxxxxxxxxxxx
Cc: linux-sh@xxxxxxxxxxxxxxx
Cc: linux-xtensa@xxxxxxxxxxxxxxxx
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx

Jason A. Donenfeld (2):
  stackprotector: move CANARY_MASK and get_random_canary() into
    stackprotector.h
  stackprotector: actually use get_random_canary()

 arch/arm/include/asm/stackprotector.h     |  9 +--------
 arch/arm64/include/asm/stackprotector.h   |  9 +--------
 arch/csky/include/asm/stackprotector.h    | 10 +---------
 arch/mips/include/asm/stackprotector.h    |  9 +--------
 arch/powerpc/include/asm/stackprotector.h | 10 +---------
 arch/riscv/include/asm/stackprotector.h   | 10 +---------
 arch/sh/include/asm/stackprotector.h      | 10 +---------
 arch/x86/include/asm/stackprotector.h     | 14 +-------------
 arch/x86/kernel/cpu/common.c              |  2 +-
 arch/x86/kernel/setup_percpu.c            |  2 +-
 arch/x86/kernel/smpboot.c                 |  2 +-
 arch/x86/xen/enlighten_pv.c               |  2 +-
 arch/xtensa/include/asm/stackprotector.h  |  7 +------
 include/linux/random.h                    | 19 -------------------
 include/linux/stackprotector.h            | 19 +++++++++++++++++++
 kernel/fork.c                             |  2 +-
 16 files changed, 33 insertions(+), 103 deletions(-)

-- 
2.38.1