From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f77.google.com (mail-ot1-f77.google.com [209.85.210.77]) (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 E03FC386553 for ; Thu, 14 May 2026 20:19:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778789983; cv=none; b=V+h+se1uca9VwqgXgcNvixNGkKVuCWdPOueok1QMylxLStj+XQYR7sVnLK/p2cEHrDX+HCC86G88ywwOsoObEXwBe1GsxiZHAB7/6l0rJ1NzQXoYwZBIhBfq5etDVtYw9Eg53Por6x9tWnSsWbEtq/TomAFsrdd+IiaSyKGNFec= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778789983; c=relaxed/simple; bh=iKhq8g1+Dz4At7ereDCv6flTuf+MuJi7sNPtsDFip4E=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=VEMYWxBCZw8Hx0gJR3n18JlCWwdxzpx94hO3ydCl3cNwGqmqCpMyZapwuyc7ty9Aoob/PBkwaNMr0e9sqQZvPfCidRIdVDughGCuimnczeDC7DetdJEEXF9YgpIud/krBDVtvIUgys2fx7xlhEbbW4lvfrptePfjzvSRxr/22dk= 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=209.85.210.77 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-ot1-f77.google.com with SMTP id 46e09a7af769-7dcda4880efso5032347a34.0 for ; Thu, 14 May 2026 13:19:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778789981; x=1779394781; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/jU1oy8BI9LHdTj/QqStWzAsOZvfYuSa+bxSV24WCt8=; b=qZk6gTnS08wyEp5/bl3Bd0A+lZX0yv+Npxo9ACBJaW+LdqHFw6P9ZMPiGgZiLzO9eX lnOfF+WEzKozBFy2coU188FmslUrsivi3Y298UKRQOI+krmKEfL1heL8PHCBo+0AHzJ4 N3IgrfTUjzoT2KZZGKuYcx5CDqMSSidAlonQ/t9PCsGOOK38lgUXLNa4e/dnMt/ba8O9 s9XCWeGsK1duUnAep3oTHTzLK3B6Z2kzwd5gOYlurFqWnK1cOZDXjZPfvrehFpvwqI4k Yy5EN0W6P2JcmEb6FHo2qbtlpfMOcfhdmctrDc8MEVEuXwZ9Rd0SMTMr5AzHhZbs7xGv Rnpg== X-Forwarded-Encrypted: i=1; AFNElJ8Nhs9Nw/zMJ85a4l8md8elSQTDfbwqIGh958FlsKa3bBSh8rhpK4qUFx08pWFOSO6zBZwDP/sdUGQT1d4=@vger.kernel.org X-Gm-Message-State: AOJu0YzYNYa5cPrICZ8Dy3YK1Zl+lwMCznNjw3fmJ9+DL0UVr5VHGPv4 VWs0s14ElF2PEqFwEsH5RziQAXjCRszaySywRLUtLFQGuN2Q7D3sS3dnrNhfoBxXyw+keItqzSs 2qfJ7UyrxGhHmIIUiWGg2QCIi5sWNcRKN3IS29pKAd8WJHa562P21PLBasE4= 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:f013:b0:696:8325:f7f5 with SMTP id 006d021491bc7-69c94330876mr681089eaf.4.1778789980928; Thu, 14 May 2026 13:19:40 -0700 (PDT) Date: Thu, 14 May 2026 13:19:40 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a062e5c.170a0220.196691.0007.GAE@google.com> Subject: [syzbot] [f2fs?] kernel BUG in f2fs_write_end_io (2) From: syzbot To: chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: aa54b1d27fe0 rxrpc: Also unshare DATA/RESPONSE packets whe.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14adabce580000 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 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1643c3ce580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12adabce580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/418e3ed628cf/disk-aa54b1d2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a35b53d0ab2f/vmlinux-aa54b1d2.xz kernel image: https://storage.googleapis.com/syzbot-assets/03c3fa0081b4/bzImage-aa54b1d2.xz mounted in repro #1: https://storage.googleapis.com/syzbot-assets/13e397c7f935/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=158fad06580000) mounted in repro #2: https://storage.googleapis.com/syzbot-assets/2f91edde40dc/mount_8.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4af46ee83100e99bce09@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:388! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 31 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:f2fs_write_end_io+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 3c 9b 8b e8 12 0a f7 fc 90 0f 0b e8 0a cc 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 fa 09 f7 fc 90 0f 0b e8 f2 cb 93 fd 90 <0f> 0b e8 ea cb 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 da 09 f7 RSP: 0018:ffffc90000a5fb18 EFLAGS: 00010246 RAX: ffffffff8430aade RBX: ffffea0000d91c40 RCX: ffff88801d6b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11dff R12: 0000000036471000 R13: ffffea0000d91c80 R14: 000000000000000b R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126276000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff6352cff8 CR3: 000000002caa2000 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 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 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+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 3c 9b 8b e8 12 0a f7 fc 90 0f 0b e8 0a cc 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 fa 09 f7 fc 90 0f 0b e8 f2 cb 93 fd 90 <0f> 0b e8 ea cb 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 da 09 f7 RSP: 0018:ffffc90000a5fb18 EFLAGS: 00010246 RAX: ffffffff8430aade RBX: ffffea0000d91c40 RCX: ffff88801d6b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11dff R12: 0000000036471000 R13: ffffea0000d91c80 R14: 000000000000000b R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126276000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff6352cff8 CR3: 000000002caa2000 CR4: 00000000003526f0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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Thu, 14 May 2026 13:19:40 -0700 (PDT) Date: Thu, 14 May 2026 13:19:40 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a062e5c.170a0220.196691.0007.GAE@google.com> From: syzbot To: chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com X-Headers-End: 1wNccJ-0001fS-7V Subject: [f2fs-dev] [syzbot] [f2fs?] kernel BUG in f2fs_write_end_io (2) X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net Hello, syzbot found the following issue on: HEAD commit: aa54b1d27fe0 rxrpc: Also unshare DATA/RESPONSE packets whe.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14adabce580000 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 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1643c3ce580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12adabce580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/418e3ed628cf/disk-aa54b1d2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a35b53d0ab2f/vmlinux-aa54b1d2.xz kernel image: https://storage.googleapis.com/syzbot-assets/03c3fa0081b4/bzImage-aa54b1d2.xz mounted in repro #1: https://storage.googleapis.com/syzbot-assets/13e397c7f935/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=158fad06580000) mounted in repro #2: https://storage.googleapis.com/syzbot-assets/2f91edde40dc/mount_8.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4af46ee83100e99bce09@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:388! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 31 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:f2fs_write_end_io+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 3c 9b 8b e8 12 0a f7 fc 90 0f 0b e8 0a cc 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 fa 09 f7 fc 90 0f 0b e8 f2 cb 93 fd 90 <0f> 0b e8 ea cb 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 da 09 f7 RSP: 0018:ffffc90000a5fb18 EFLAGS: 00010246 RAX: ffffffff8430aade RBX: ffffea0000d91c40 RCX: ffff88801d6b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11dff R12: 0000000036471000 R13: ffffea0000d91c80 R14: 000000000000000b R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126276000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff6352cff8 CR3: 000000002caa2000 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 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 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+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 3c 9b 8b e8 12 0a f7 fc 90 0f 0b e8 0a cc 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 fa 09 f7 fc 90 0f 0b e8 f2 cb 93 fd 90 <0f> 0b e8 ea cb 93 fd 48 8b 3c 24 48 c7 c6 20 3c 9b 8b e8 da 09 f7 RSP: 0018:ffffc90000a5fb18 EFLAGS: 00010246 RAX: ffffffff8430aade RBX: ffffea0000d91c40 RCX: ffff88801d6b0000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11dff R12: 0000000036471000 R13: ffffea0000d91c80 R14: 000000000000000b R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888126276000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007eff6352cff8 CR3: 000000002caa2000 CR4: 00000000003526f0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel