Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.14 | possible deadlock in match_revfn (2) | 190 | 654d | 1102d | 0/1 | upstream: reported on 2021/12/04 10:49 |
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audit: type=1326 audit(1627851708.050:18): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=10506 comm="syz-executor.3" exe="/root/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x4665e9 code=0x0 ====================================================== WARNING: possible circular locking dependency detected 4.14.241-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/10571 is trying to acquire lock: (&xt[i].mutex){+.+.}, at: [<ffffffff85f0cbf3>] match_revfn+0x43/0x210 net/netfilter/x_tables.c:332 but task is already holding lock: (&table[i].mutex){+.+.}, at: [<ffffffff85e38b16>] nfnl_lock net/netfilter/nfnetlink.c:61 [inline] (&table[i].mutex){+.+.}, at: [<ffffffff85e38b16>] nfnetlink_rcv_msg+0x726/0xc00 net/netfilter/nfnetlink.c:209 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&table[i].mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xba0 net/core/dev.c:7210 rollback_registered+0xca/0x170 net/core/dev.c:7252 unregister_netdevice_queue+0x1b4/0x360 net/core/dev.c:8273 br_del_bridge+0xa9/0xe0 net/bridge/br_if.c:419 br_ioctl_deviceless_stub+0x1ff/0x5f0 net/bridge/br_ioctl.c:380 sock_ioctl+0x254/0x4c0 net/socket.c:1038 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 unregister_netdevice_notifier+0x5e/0x2b0 net/core/dev.c:1630 tee_tg_destroy+0x5c/0xb0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x232/0x310 net/ipv6/netfilter/ip6_tables.c:684 __do_replace+0x38d/0x580 net/ipv6/netfilter/ip6_tables.c:1105 do_replace net/ipv6/netfilter/ip6_tables.c:1161 [inline] do_ip6t_set_ctl+0x256/0x3b0 net/ipv6/netfilter/ip6_tables.c:1687 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x5f/0xb0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0xc0/0x120 net/ipv6/ipv6_sockglue.c:937 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1462 SYSC_setsockopt net/socket.c:1865 [inline] SyS_setsockopt+0x110/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&xt[i].mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 match_revfn+0x43/0x210 net/netfilter/x_tables.c:332 xt_find_revision+0x8d/0x1d0 net/netfilter/x_tables.c:380 nfnl_compat_get+0x1f7/0x870 net/netfilter/nft_compat.c:678 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2435 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1289 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1315 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1880 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &xt[i].mutex --> rtnl_mutex --> &table[i].mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&table[i].mutex); lock(rtnl_mutex); lock(&table[i].mutex); lock(&xt[i].mutex); *** DEADLOCK *** 1 lock held by syz-executor.3/10571: #0: (&table[i].mutex){+.+.}, at: [<ffffffff85e38b16>] nfnl_lock net/netfilter/nfnetlink.c:61 [inline] #0: (&table[i].mutex){+.+.}, at: [<ffffffff85e38b16>] nfnetlink_rcv_msg+0x726/0xc00 net/netfilter/nfnetlink.c:209 stack backtrace: CPU: 1 PID: 10571 Comm: syz-executor.3 Not tainted 4.14.241-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 match_revfn+0x43/0x210 net/netfilter/x_tables.c:332 xt_find_revision+0x8d/0x1d0 net/netfilter/x_tables.c:380 nfnl_compat_get+0x1f7/0x870 net/netfilter/nft_compat.c:678 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2435 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1289 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1315 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1880 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4665e9 RSP: 002b:00007f5702fb6188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 00000000200016c0 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe8d8a6a6f R14: 00007f5702fb6300 R15: 0000000000022000 binder: 11020:11025 ioctl c018620c 0 returned -22 binder: 11020:11033 ioctl c018620c 0 returned -22 binder: 11212:11219 ioctl c018620c 20000480 returned -22 binder: 11212:11243 ioctl c018620c 20000480 returned -22 binder: 11328:11333 ioctl c0306201 200003c0 returned -22 binder: 11332:11337 ioctl c0306201 0 returned -14 binder: 11328:11344 ioctl c0306201 200003c0 returned -22 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready WARNING: can't dereference registers at 0000000000000be0 for ip entry_SYSCALL_64_after_hwframe+0x46/0xbb IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready nvme_fabrics: unknown parameter or missing value '' in ctrl creation request nvme_fabrics: unknown parameter or missing value '' in ctrl creation request nvme_fabrics: unknown parameter or missing value '' in ctrl creation request nvme_fabrics: unknown parameter or missing value '' in ctrl creation request
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/08/01 21:02 | linux-4.14.y | ce4d1565392b | 6c236867 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/20 06:35 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/20 04:12 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/20 02:20 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/20 00:45 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/19 06:36 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/19 04:28 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/19 02:04 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/18 19:50 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/18 18:45 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/18 17:19 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/18 01:02 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/18 00:02 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 21:43 | linux-4.14.y | 7d7d1c0ab3eb | a343ba6b | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 19:23 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 16:35 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 14:59 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 12:33 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 10:42 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 09:29 | linux-4.14.y | 7d7d1c0ab3eb | a2eb125d | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 06:19 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/17 02:56 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 22:49 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 16:52 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 10:01 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 03:29 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 03:06 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/16 01:23 | linux-4.14.y | 7d7d1c0ab3eb | f54a5c09 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/15 19:22 | linux-4.14.y | 7d7d1c0ab3eb | 93f844de | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/15 18:16 | linux-4.14.y | 7d7d1c0ab3eb | 93f844de | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/15 11:59 | linux-4.14.y | 7d7d1c0ab3eb | 93f844de | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/15 10:27 | linux-4.14.y | 7d7d1c0ab3eb | 93f844de | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/15 06:38 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 22:46 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 18:50 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 05:27 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 03:37 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 02:26 | linux-4.14.y | 7d7d1c0ab3eb | ecb594cb | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/14 00:29 | linux-4.14.y | 7d7d1c0ab3eb | ecb594cb | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/13 13:38 | linux-4.14.y | 7d7d1c0ab3eb | ecb594cb | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/13 12:16 | linux-4.14.y | 7d7d1c0ab3eb | ed7d41c5 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/13 07:26 | linux-4.14.y | 7d7d1c0ab3eb | ed7d41c5 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/13 05:23 | linux-4.14.y | 7d7d1c0ab3eb | ed7d41c5 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/13 00:16 | linux-4.14.y | 7d7d1c0ab3eb | ed7d41c5 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/12 19:56 | linux-4.14.y | 7d7d1c0ab3eb | ed7d41c5 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/12 18:33 | linux-4.14.y | 7d7d1c0ab3eb | 86294427 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/05/12 13:50 | linux-4.14.y | 7d7d1c0ab3eb | 86294427 | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn | |||
2021/03/17 20:43 | linux-4.14.y | cb83ddcd5332 | fdb2bb2c | .config | console log | report | info | ci2-linux-4-14 | possible deadlock in match_revfn |