linux-kernel - Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Write in sco_sock

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Message-ID: <00000000000056b41c060a4ed37a@google.com>
Date:   Thu, 16 Nov 2023 17:12:09 -0800
From:   syzbot <syzbot+4c0d0c4cde787116d465@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org, lizhi.xu@...driver.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Write in sco_sock_timeout

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

net/bluetooth/sco.c:418:26: error: static assertion failed due to requirement '__builtin_types_compatible_p(struct sock, struct sock *) || __builtin_types_compatible_p(struct sock, void)': pointer type mismatch in container_of()


Tested on:

commit:         8de1e7af Merge branch 'for-next/core' into for-kernelci
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=3e6feaeda5dcbc27
dashboard link: https://syzkaller.appspot.com/bug?extid=4c0d0c4cde787116d465
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1417b23f680000