syzbot


WARNING in cleanup_net

Status: internal: reported on 2022/10/25 07:43
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: d1e96cc4fbe0 mptcp: fix tracking issue in mptcp_subflow_create_socket()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 96d, last: 16h32m

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 3 PID: 11 at lib/ref_tracker.c:39 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
WARNING: CPU: 3 PID: 11 at lib/ref_tracker.c:39 ref_tracker_dir_exit.cold+0x137/0x1e3 lib/ref_tracker.c:38
Modules linked in:
CPU: 2 PID: 11 Comm: kworker/u16:1 Not tainted 6.2.0-rc5-syzkaller-00205-gc96618275234 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:ref_tracker_dir_exit.cold+0x137/0x1e3 lib/ref_tracker.c:39
Code: 4c 89 ef e8 d9 bf fc f7 4c 8b 3c 24 4c 39 fd 49 8b 07 0f 85 b5 00 00 00 e8 64 84 af f7 48 8b 74 24 10 4c 89 e7 e8 e7 31 38 00 <0f> 0b e9 19 95 68 fa 4c 89 ff e8 a8 bf fc f7 e9 d4 fe ff ff e8 7e
RSP: 0018:ffffc900005efc00 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff888073864250 R08: 0000000000000001 R09: ffffffff9132fbdf
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888073864200
R13: ffff888073864250 R14: ffff888073864250 R15: ffff888073864250
FS:  0000000000000000(0000) GS:ffff88802c900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002018b000 CR3: 00000000776ea000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 net_free net/core/net_namespace.c:442 [inline]
 net_free net/core/net_namespace.c:436 [inline]
 cleanup_net+0x8bb/0xb10 net/core/net_namespace.c:627
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Crashes (583):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-qemu-upstream 2023/01/29 03:44 upstream c96618275234 7374c4e5 .config console log report info WARNING in cleanup_net
ci-upstream-kasan-gce-root 2023/01/23 17:33 upstream 2475bf0250de 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-root 2023/01/23 09:11 upstream 2475bf0250de 44388686 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-selinux-root 2023/01/21 01:06 upstream ff83fec8179e 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-root 2023/01/07 21:57 upstream 9b43a525db12 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2023/01/07 07:32 upstream a689b938df39 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2023/01/04 23:56 upstream 512dee0c00ad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-root 2022/12/27 22:30 upstream 1b929c02afd3 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-selinux-root 2022/12/21 15:09 upstream b6bb9676f216 4067838e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-qemu-upstream 2022/12/21 00:01 upstream b6bb9676f216 d3e76707 .config console log report info WARNING in cleanup_net
ci-upstream-kasan-gce 2022/12/20 13:05 upstream 6feb57c2fd7c d3e76707 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2022/12/20 11:51 upstream 6feb57c2fd7c d3e76707 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-qemu-upstream 2022/12/20 10:07 upstream 6feb57c2fd7c 4791c8e9 .config console log report info WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2022/12/20 08:53 upstream 6feb57c2fd7c c52b2efb .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-selinux-root 2022/12/19 17:41 upstream 2f26e424552e c52b2efb .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2022/12/18 11:28 upstream f9ff5644bcc0 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-qemu-upstream 2022/12/18 06:50 upstream f9ff5644bcc0 05494336 .config console log report info WARNING in cleanup_net
ci-upstream-kasan-gce-smack-root 2022/12/17 18:52 upstream 75caf5940899 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-kasan-gce-selinux-root 2022/12/17 17:23 upstream ed56954cf5a8 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-qemu-upstream 2022/12/16 12:06 upstream 84e57d292203 fcac021f .config console log report info WARNING in cleanup_net
ci-qemu-upstream-386 2023/01/07 03:03 upstream a689b938df39 1dac8c7a .config console log report info WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2023/01/29 01:25 net a6efc42a86c0 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2023/01/26 20:18 net 7083df59abbc 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2023/01/22 20:16 net 71ab9c3e2253 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2023/01/19 04:16 net b9fb10d131b8 42660d9e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2023/01/18 08:11 net 010a74f52203 42660d9e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-kasan-gce 2022/12/28 16:52 bpf fcbb408a1aaf 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2022/12/28 12:26 net 81852018f240 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2022/12/27 21:03 net d3805695fe1e 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-this-kasan-gce 2022/12/17 01:19 net 13e3c7793e2f 05494336 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/29 06:38 bpf-next 07dcbd7325ce 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/27 22:24 net-next c2ea552065e4 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/25 18:01 bpf-next b613d335a743 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/25 03:12 net-next c554520f2cbe 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/24 09:19 net-next 32e54254bab8 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/23 12:02 net-next 40e0b0908142 44388686 .config console log report info WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/21 11:41 bpf-next 84150795a49a 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/20 11:51 net-next 3ef4a8c8963b 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/20 05:41 net-next 3ef4a8c8963b 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/18 17:58 net-next c4791b3196bf 42660d9e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/18 06:50 bpf-next c0f264e4edb6 42660d9e .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/16 14:53 net-next 5129bd8e8840 a63719e7 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/12 13:13 net-next 93e71edfd90c 96166539 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/11 15:36 net-next ef1757ef5846 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/11 12:30 bpf-next af0e26beaa69 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/06 17:52 bpf-next 6bd4755c7c49 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2023/01/06 07:44 bpf-next 4aea86b4033f 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2023/01/02 23:25 net-next c183e6c3ec34 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2022/12/28 04:34 bpf-next 4633a0068258 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2022/12/27 14:48 net-next c183e6c3ec34 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-bpf-next-kasan-gce 2022/12/26 23:11 bpf-next cfca00767feb 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2022/12/21 01:07 net-next 9054b41c4e1b d3e76707 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-net-kasan-gce 2022/10/25 07:42 net-next 6143eca3578f 45645420 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-linux-next-kasan-gce-root 2022/12/19 19:53 linux-next d650871875b2 c52b2efb .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
ci-upstream-linux-next-kasan-gce-root 2022/12/16 13:18 linux-next ca39c4daa6f7 79e1d513 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in cleanup_net
* Struck through repros no longer work on HEAD.