linux-kernel - Re: [syzbot] [net?] [nfc?] KASAN: slab-use-after-free Read in nfc_alloc_send

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Date:   Thu, 09 Nov 2023 05:02:04 -0800
From:   syzbot <syzbot+bbe84a4010eeea00982d@...kaller.appspotmail.com>
To:     eadavis@...com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] [nfc?] KASAN: slab-use-after-free Read in nfc_alloc_send_skb

Hello,

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

net/nfc/nci/core.c:1210:30: error: static assertion failed due to requirement '__builtin_types_compatible_p(struct nfc_dev, struct nfc_dev *) || __builtin_types_compatible_p(struct nfc_dev, void)': pointer type mismatch in container_of()

Tested on:

commit:         aea6bf90 Merge tag 'f2fs-for-6.7-rc1' of git://git.ker..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=93ac5233c138249e
dashboard link: https://syzkaller.appspot.com/bug?extid=bbe84a4010eeea00982d
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1750e11f680000