linux-kernel - Re: [PATCH -fixes v2] riscv: Fix out-of-bounds when accessing Andes per hart vendor extension array

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: 
 <172374423800.2967007.6789620641826605863.git-patchwork-notify@kernel.org>
Date: Thu, 15 Aug 2024 17:50:38 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Alexandre Ghiti <alexghiti@...osinc.com>
Cc: linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com,
 palmer@...belt.com, aou@...s.berkeley.edu, charlie@...osinc.com,
 andy.chiu@...ive.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -fixes v2] riscv: Fix out-of-bounds when accessing Andes per
 hart vendor extension array

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@...osinc.com>:

On Wed, 14 Aug 2024 21:26:19 +0200 you wrote:
> The out-of-bounds access is reported by UBSAN:
> 
> [    0.000000] UBSAN: array-index-out-of-bounds in ../arch/riscv/kernel/vendor_extensions.c:41:66
> [    0.000000] index -1 is out of range for type 'riscv_isavendorinfo [32]'
> [    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.11.0-rc2ubuntu-defconfig #2
> [    0.000000] Hardware name: riscv-virtio,qemu (DT)
> [    0.000000] Call Trace:
> [    0.000000] [<ffffffff94e078ba>] dump_backtrace+0x32/0x40
> [    0.000000] [<ffffffff95c83c1a>] show_stack+0x38/0x44
> [    0.000000] [<ffffffff95c94614>] dump_stack_lvl+0x70/0x9c
> [    0.000000] [<ffffffff95c94658>] dump_stack+0x18/0x20
> [    0.000000] [<ffffffff95c8bbb2>] ubsan_epilogue+0x10/0x46
> [    0.000000] [<ffffffff95485a82>] __ubsan_handle_out_of_bounds+0x94/0x9c
> [    0.000000] [<ffffffff94e09442>] __riscv_isa_vendor_extension_available+0x90/0x92
> [    0.000000] [<ffffffff94e043b6>] riscv_cpufeature_patch_func+0xc4/0x148
> [    0.000000] [<ffffffff94e035f8>] _apply_alternatives+0x42/0x50
> [    0.000000] [<ffffffff95e04196>] apply_boot_alternatives+0x3c/0x100
> [    0.000000] [<ffffffff95e05b52>] setup_arch+0x85a/0x8bc
> [    0.000000] [<ffffffff95e00ca0>] start_kernel+0xa4/0xfb6
> 
> [...]

Here is the summary with links:
  - [-fixes,v2] riscv: Fix out-of-bounds when accessing Andes per hart vendor extension array
    https://git.kernel.org/riscv/c/b3f10d9b81e5

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html