From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: npiggin@gmail.com, aneesh.kumar@kernel.org,
naveen.n.rao@linux.ibm.com, christophe.leroy@csgroup.eu,
christophe.leroy@c-s.fr,
Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
nixiaoming@huawei.com, wangbing6@huawei.com,
douzhaolei@huawei.com, wangfangpeng1@huawei.com
Subject: Re: [PING PATCH] powerpc/kasan: Fix addr error caused by page alignment
Date: Thu, 15 Feb 2024 23:57:37 +1100 [thread overview]
Message-ID: <170800185784.599237.15590850355904015757.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <1705974359-43790-1-git-send-email-xiaojiangfeng@huawei.com>
On Tue, 23 Jan 2024 09:45:59 +0800, Jiangfeng Xiao wrote:
> In kasan_init_region, when k_start is not page aligned,
> at the begin of for loop, k_cur = k_start & PAGE_MASK
> is less than k_start, and then va = block + k_cur - k_start
> is less than block, the addr va is invalid, because the
> memory address space from va to block is not alloced by
> memblock_alloc, which will not be reserved
> by memblock_reserve later, it will be used by other places.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/kasan: Fix addr error caused by page alignment
https://git.kernel.org/powerpc/c/4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: npiggin@gmail.com, aneesh.kumar@kernel.org,
naveen.n.rao@linux.ibm.com, christophe.leroy@csgroup.eu,
christophe.leroy@c-s.fr,
Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Cc: douzhaolei@huawei.com, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, wangbing6@huawei.com,
wangfangpeng1@huawei.com, nixiaoming@huawei.com
Subject: Re: [PING PATCH] powerpc/kasan: Fix addr error caused by page alignment
Date: Thu, 15 Feb 2024 23:57:37 +1100 [thread overview]
Message-ID: <170800185784.599237.15590850355904015757.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <1705974359-43790-1-git-send-email-xiaojiangfeng@huawei.com>
On Tue, 23 Jan 2024 09:45:59 +0800, Jiangfeng Xiao wrote:
> In kasan_init_region, when k_start is not page aligned,
> at the begin of for loop, k_cur = k_start & PAGE_MASK
> is less than k_start, and then va = block + k_cur - k_start
> is less than block, the addr va is invalid, because the
> memory address space from va to block is not alloced by
> memblock_alloc, which will not be reserved
> by memblock_reserve later, it will be used by other places.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/kasan: Fix addr error caused by page alignment
https://git.kernel.org/powerpc/c/4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0
cheers
next prev parent reply other threads:[~2024-02-15 12:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-23 1:45 [PING PATCH] powerpc/kasan: Fix addr error caused by page alignment Jiangfeng Xiao
2024-01-23 1:45 ` Jiangfeng Xiao
2024-01-23 7:10 ` Christophe Leroy
2024-01-23 7:10 ` Christophe Leroy
2024-02-15 12:57 ` Michael Ellerman [this message]
2024-02-15 12:57 ` Michael Ellerman
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