From: Will Deacon <will@kernel.org>
To: linux-arm-kernel@lists.infradead.org, Will Deacon <will@kernel.org>
Cc: catalin.marinas@arm.com, kernel-team@android.com,
linux-kernel@vger.kernel.org, ryabinin.a.a@gmail.com,
glider@google.com, kasan-dev@googlegroups.com,
Andrey Konovalov <andreyknvl@gmail.com>,
Mark Rutland <mark.rutland@arm.com>,
syzbot+908886656a02769af987@syzkaller.appspotmail.com
Subject: Re: [PATCH] kasan: Disable Software Tag-Based KASAN with GCC
Date: Tue, 15 Oct 2024 13:39:08 +0100 [thread overview]
Message-ID: <172898869113.658437.16326042568646594201.b4-ty@kernel.org> (raw)
In-Reply-To: <20241014161100.18034-1-will@kernel.org>
On Mon, 14 Oct 2024 17:11:00 +0100, Will Deacon wrote:
> Syzbot reports a KASAN failure early during boot on arm64 when building
> with GCC 12.2.0 and using the Software Tag-Based KASAN mode:
>
> | BUG: KASAN: invalid-access in smp_build_mpidr_hash arch/arm64/kernel/setup.c:133 [inline]
> | BUG: KASAN: invalid-access in setup_arch+0x984/0xd60 arch/arm64/kernel/setup.c:356
> | Write of size 4 at addr 03ff800086867e00 by task swapper/0
> | Pointer tag: [03], memory tag: [fe]
>
> [...]
Applied to arm64 (for-next/fixes), thanks!
[1/1] kasan: Disable Software Tag-Based KASAN with GCC
https://git.kernel.org/arm64/c/7aed6a2c51ff
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
next prev parent reply other threads:[~2024-10-15 12:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-14 16:11 Will Deacon
2024-10-14 16:25 ` Mark Rutland
2024-10-14 18:30 ` Andrey Konovalov
2024-10-15 12:39 ` Will Deacon [this message]
2024-10-18 8:37 ` Marco Elver
2024-10-18 20:25 ` Andrey Konovalov
2024-10-18 20:30 ` Marco Elver
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