From: Catalin Marinas <catalin.marinas@arm.com>
To: Evgenii Stepanov <eugenis@google.com>
Cc: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Jisheng Zhang <jszhang@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: extable: fix null deref in load_unaligned_zeropad.
Date: Mon, 24 Jan 2022 09:56:05 +0000 [thread overview]
Message-ID: <Ye53tbiEt9Z1Jf9/@arm.com> (raw)
In-Reply-To: <20220122023447.1480995-1-eugenis@google.com>
On Fri, Jan 21, 2022 at 06:34:47PM -0800, Evgenii Stepanov wrote:
> ex_handler_load_unaligned_zeropad extracts the source and data register
> numbers from the wrong field of the exception table.
Could you please also include the stack dump if you get one from the
null pointer dereference?
> Fixes: 753b3236
This should be expanded:
Fixes: 753b32368705 ("arm64: extable: add load_unaligned_zeropad() handler")
Cc: <stable@vger.kernel.org> # 5.16.x
Thanks.
--
Catalin
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WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Evgenii Stepanov <eugenis@google.com>
Cc: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ardb@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Jisheng Zhang <jszhang@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: extable: fix null deref in load_unaligned_zeropad.
Date: Mon, 24 Jan 2022 09:56:05 +0000 [thread overview]
Message-ID: <Ye53tbiEt9Z1Jf9/@arm.com> (raw)
In-Reply-To: <20220122023447.1480995-1-eugenis@google.com>
On Fri, Jan 21, 2022 at 06:34:47PM -0800, Evgenii Stepanov wrote:
> ex_handler_load_unaligned_zeropad extracts the source and data register
> numbers from the wrong field of the exception table.
Could you please also include the stack dump if you get one from the
null pointer dereference?
> Fixes: 753b3236
This should be expanded:
Fixes: 753b32368705 ("arm64: extable: add load_unaligned_zeropad() handler")
Cc: <stable@vger.kernel.org> # 5.16.x
Thanks.
--
Catalin
next prev parent reply other threads:[~2022-01-24 9:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-22 2:34 [PATCH] arm64: extable: fix null deref in load_unaligned_zeropad Evgenii Stepanov
2022-01-22 2:34 ` Evgenii Stepanov
2022-01-24 9:56 ` Catalin Marinas [this message]
2022-01-24 9:56 ` Catalin Marinas
2022-01-25 15:23 ` Mark Rutland
2022-01-25 15:23 ` Mark Rutland
2022-01-25 15:50 ` Mark Rutland
2022-01-25 15:50 ` Mark Rutland
2022-01-25 16:59 ` Evgenii Stepanov
2022-01-25 16:59 ` Evgenii Stepanov
2022-01-25 17:07 ` Mark Rutland
2022-01-25 17:07 ` Mark Rutland
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