From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f71.google.com (mail-oa1-f71.google.com [209.85.160.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 07BB13290AD for ; Fri, 15 May 2026 01:37:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778809025; cv=none; b=OfUDUaH0w2Qz+XPNIUHBhZACqhkrRS4/RXgAzdodEKp9BdnJonjqFqueZouXEDCbIlFLqdoiPkq3Hx60A5Unv8tu6jSZYjBCdOCH5yaWldil3lFAuU7kI1ctAa7mzqyF+RlQS+3U6yH6AESvc53yKWf6THGOMoDLDgOOtjGWOxQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778809025; c=relaxed/simple; bh=G2WzEc+Z3g7Sn1mokO597mh3GsIKTHnw2CZrss4Vw1Q=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=VZE2kh4rJb+lcCxQ24WctFEwKmz2K2b++77oziZK1rAY9ILPYWPtDwh0ocjWCug0Jr4Aw1f9YCd3OJjNnISBW6rdqnR+/7SWWwhDnv9v+zTl9fySdqwJ9AgnLOSPCc2uZA5BbyeAc9b7WGlzUvlhOc60Fths0dIc56ioxmOf5ek= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.160.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oa1-f71.google.com with SMTP id 586e51a60fabf-4346755f7dcso11333647fac.3 for ; Thu, 14 May 2026 18:37:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778809023; x=1779413823; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=hsNBgOLLux0b7dNy83/SAtKo3F3N7VBue/dQ8mYU7W8=; b=puRuau222ww71RUeD/Q4rrCmVKtJnwXh+zFAajJX8W4LnGZ/AsWcxdyc1Q3vWfzdlf c2iy6az5YyTKlbzTjhKCE2Hq5SG+T2kYZdttkwssbB/w4/I8B6GzeOa5okKi5T2HvZZC EV+6vMwxaAxkcXTKrAdSM67C3T8MEMIe/5IXFNlfUvjKqhR130IjrwTc53KPBS4Gp6hf caZxmyd7kBX1oLQ0FROd9RlMj43g7qNR2hsn8G+UajTh2yBC8b1/lnofAQoUjrOZT5xg DyyMh8LxNJwCp4Zucc9Nq9Xc2moKc50Z8M3nWIu5ypUdA0owgouM3yO5q/nLWc9SCojZ 5Sbw== X-Forwarded-Encrypted: i=1; AFNElJ/yAssTTVuUd55KY86ytOZUEhDw4kIs52R8uu5b+XJVeiKYFXyUBZFQT0Kf+69wLpGFY3mXyAr7Gm881XM=@vger.kernel.org X-Gm-Message-State: AOJu0YxT3sF7DCg+O9VQogRV99uUjLMcze6btpOe5BetQWy8LaJcLnnR P4z0bBMKpo4kn2VvwqYfyzQD0TbPeelQj366g+pv0CsQanlk9PAnRjG7nrU1REC2Pa+eURKywQJ qgsftxMhfnlFnA1HmMfvhM6VdbYEwxr7nxM5eqlpdshcvfl4ZuKrYVg9XXkc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1621:b0:69b:927b:ef35 with SMTP id 006d021491bc7-69c942a5796mr1233300eaf.8.1778809023088; Thu, 14 May 2026 18:37:03 -0700 (PDT) Date: Thu, 14 May 2026 18:37:03 -0700 In-Reply-To: <20260515005957.13243-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a0678bf.170a0220.9c1d9.07f2.GAE@google.com> Subject: Re: [syzbot] [f2fs?] kernel BUG in f2fs_write_end_io (2) From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in f2fs_write_end_io f2fs-dbg: READ end_io: index=3 footer_nid=0 ino=0 uptodate=0 dirty=0 rc=-117 f2fs-dbg: READ end_io: index=3 footer_nid=0 ino=0 uptodate=0 dirty=0 rc=-117 f2fs-dbg: WRITE end_io: index=3 footer_nid=0 ino=0 uptodate=0 dirty=0 rc=-117 ------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:394! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 42 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Workqueue: bat_events batadv_bla_periodic_work RIP: 0010:f2fs_write_end_io+0x1a74/0x1ab0 fs/f2fs/data.c:394 Code: c6 20 3d 9b 8b e8 cc d3 f6 fc 90 0f 0b e8 54 c8 93 fd 4c 89 e7 48 c7 c6 20 3d 9b 8b e8 b5 d3 f6 fc 90 0f 0b e8 3d c8 93 fd 90 <0f> 0b e8 35 c8 93 fd 48 8b 7c 24 08 48 c7 c6 20 3d 9b 8b e8 94 d3 RSP: 0018:ffffc90000b47590 EFLAGS: 00010246 RAX: ffffffff8430e123 RBX: 0000000000001000 RCX: ffff88801f2b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffff52000168e61 R12: ffffea0000951140 R13: 0000000000001000 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126274000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002b72c000 CR4: 00000000003526f0 Call Trace: blk_update_request+0x57e/0xe60 block/blk-mq.c:1016 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1178 blk_complete_reqs block/blk-mq.c:1253 [inline] blk_done_softirq+0x10a/0x160 block/blk-mq.c:1258 handle_softirqs+0x1de/0x6d0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] __local_bh_enable_ip+0x170/0x2b0 kernel/softirq.c:302 local_bh_enable include/linux/bottom_half.h:33 [inline] netif_rx+0xb9/0xf0 net/core/dev.c:5775 batadv_bla_send_claim+0xa12/0xeb0 net/batman-adv/bridge_loop_avoidance.c:447 batadv_bla_send_announce net/batman-adv/bridge_loop_avoidance.c:675 [inline] batadv_bla_periodic_work+0x629/0xae0 net/batman-adv/bridge_loop_avoidance.c:1490 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_write_end_io+0x1a74/0x1ab0 fs/f2fs/data.c:394 Code: c6 20 3d 9b 8b e8 cc d3 f6 fc 90 0f 0b e8 54 c8 93 fd 4c 89 e7 48 c7 c6 20 3d 9b 8b e8 b5 d3 f6 fc 90 0f 0b e8 3d c8 93 fd 90 <0f> 0b e8 35 c8 93 fd 48 8b 7c 24 08 48 c7 c6 20 3d 9b 8b e8 94 d3 RSP: 0018:ffffc90000b47590 EFLAGS: 00010246 RAX: ffffffff8430e123 RBX: 0000000000001000 RCX: ffff88801f2b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffff52000168e61 R12: ffffea0000951140 R13: 0000000000001000 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126274000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002b72c000 CR4: 00000000003526f0 Tested on: commit: 66182ca8 Merge tag 'net-7.1-rc4' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=142d20ec580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f2e8ebfec4636d32 dashboard link: https://syzkaller.appspot.com/bug?extid=4af46ee83100e99bce09 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=1400d636580000