netdev - Re: [syzbot] UBSAN: shift-out-of-bounds in xfrm_get

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Message-ID: <983049ea-3023-8dbe-cbb4-51fb5661d2cb@gmail.com>
Date:   Wed, 1 Sep 2021 23:21:00 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     syzbot <syzbot+b2be9dd8ca6f6c73ee2d@...kaller.appspotmail.com>,
        antony.antony@...unet.com, christian.langrock@...unet.com,
        davem@...emloft.net, herbert@...dor.apana.org.au, kuba@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        steffen.klassert@...unet.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] UBSAN: shift-out-of-bounds in xfrm_get_default

On 9/1/21 23:15, syzbot wrote:
> Hello,
> 
> syzbot tried to test the proposed patch but the build/boot failed:
> 
> arch/x86/kernel/setup.c:916:6: error: implicit declaration of function 'acpi_mps_check' [-Werror=implicit-function-declaration]
> arch/x86/kernel/setup.c:1110:2: error: implicit declaration of function 'acpi_table_upgrade' [-Werror=implicit-function-declaration]
> arch/x86/kernel/setup.c:1112:2: error: implicit declaration of function 'acpi_boot_table_init' [-Werror=implicit-function-declaration]
> arch/x86/kernel/setup.c:1120:2: error: implicit declaration of function 'early_acpi_boot_init'; did you mean 'early_cpu_init'? [-Werror=implicit-function-declaration]
> arch/x86/kernel/setup.c:1162:2: error: implicit declaration of function 'acpi_boot_init' [-Werror=implicit-function-declaration]
> 
> 
> Tested on:
> 
> commit:         9e9fb765 Merge tag 'net-next-5.15' of git://git.kernel..
> git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git master
> dashboard link: https://syzkaller.appspot.com/bug?extid=b2be9dd8ca6f6c73ee2d
> compiler:
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=14a2a34d300000
> 

Ok, net-next is also broken....

#syz test:
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git master




With regards,
Pavel Skripkin
View attachment "0001-net-xfrm-fix-shift-out-of-bounds-in-xfrm_get_default.patch" of type "text/x-patch" (1227 bytes)