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🐞 Open [1155] 🐞 Fixed [4318] 🐞 Invalid [9655] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
android-44 | possible deadlock in sch_direct_xmit | C | 240 | 1156d | 1393d | 0/2 | public: reported C repro on 2019/04/11 08:44 | ||
upstream | possible deadlock in sch_direct_xmit (2) | C | error | unreliable | 97 | 26d | 1009d | 0/24 | upstream: reported C repro on 2020/04/29 00:59 |
linux-4.19 | possible deadlock in sch_direct_xmit (2) | C | error | 12 | 20d | 494d | 0/1 | upstream: reported C repro on 2021/09/26 01:30 | |
linux-4.14 | possible deadlock in sch_direct_xmit | 1 | 1340d | 1340d | 0/1 | auto-closed as invalid on 2019/10/25 08:40 | |||
linux-4.14 | possible deadlock in sch_direct_xmit (2) | 1 | 1173d | 1173d | 0/1 | auto-closed as invalid on 2020/03/15 19:58 | |||
linux-4.19 | possible deadlock in sch_direct_xmit | 1 | 1341d | 1341d | 0/1 | auto-closed as invalid on 2019/10/25 08:50 |
============================================ WARNING: possible recursive locking detected 4.15.0-rc7+ #260 Not tainted -------------------------------------------- syzkaller218108/3657 is trying to acquire lock: (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] spin_lock include/linux/spinlock.h:310 [inline] (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] __netif_tx_lock include/linux/netdevice.h:3537 [inline] (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] sch_direct_xmit+0x280/0x6d0 net/sched/sch_generic.c:185 but task is already holding lock: (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] spin_lock include/linux/spinlock.h:310 [inline] (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] __netif_tx_lock include/linux/netdevice.h:3537 [inline] (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] sch_direct_xmit+0x280/0x6d0 net/sched/sch_generic.c:185 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(_xmit_ETHER#2); lock(_xmit_ETHER#2); *** DEADLOCK *** May be due to missing lock nesting notation 10 locks held by syzkaller218108/3657: #0: (&tfile->napi_mutex){+.+.}, at: [<00000000129cc53a>] tun_get_user+0xe5a/0x3710 drivers/net/tun.c:1636 #1: (rcu_read_lock){....}, at: [<000000007677140a>] arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline] #1: (rcu_read_lock){....}, at: [<000000007677140a>] static_key_false include/linux/jump_label.h:142 [inline] #1: (rcu_read_lock){....}, at: [<000000007677140a>] netif_receive_skb_internal+0xa2/0x670 net/core/dev.c:4585 #2: (k-slock-AF_INET){+...}, at: [<0000000095e11f1b>] spin_trylock include/linux/spinlock.h:320 [inline] #2: (k-slock-AF_INET){+...}, at: [<0000000095e11f1b>] icmp_xmit_lock net/ipv4/icmp.c:219 [inline] #2: (k-slock-AF_INET){+...}, at: [<0000000095e11f1b>] icmp_send+0x75e/0x19d0 net/ipv4/icmp.c:668 #3: (rcu_read_lock_bh){....}, at: [<0000000016d9d0cb>] lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline] #3: (rcu_read_lock_bh){....}, at: [<0000000016d9d0cb>] ip_finish_output2+0x2b6/0x1500 net/ipv4/ip_output.c:213 #4: (rcu_read_lock_bh){....}, at: [<000000007d2deb0a>] __dev_queue_xmit+0x294/0x2920 net/core/dev.c:3434 #5: (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: [<00000000d2573a7c>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3533 #6: (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] spin_lock include/linux/spinlock.h:310 [inline] #6: (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] __netif_tx_lock include/linux/netdevice.h:3537 [inline] #6: (_xmit_ETHER#2){+.-.}, at: [<000000005c439601>] sch_direct_xmit+0x280/0x6d0 net/sched/sch_generic.c:185 #7: (rcu_read_lock_bh){....}, at: [<0000000016d9d0cb>] lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline] #7: (rcu_read_lock_bh){....}, at: [<0000000016d9d0cb>] ip_finish_output2+0x2b6/0x1500 net/ipv4/ip_output.c:213 #8: (rcu_read_lock_bh){....}, at: [<000000007d2deb0a>] __dev_queue_xmit+0x294/0x2920 net/core/dev.c:3434 #9: (dev->qdisc_running_key ?: &qdisc_running_key){+...}, at: [<00000000d2573a7c>] dev_queue_xmit+0x17/0x20 net/core/dev.c:3533 stack backtrace: CPU: 0 PID: 3657 Comm: syzkaller218108 Not tainted 4.15.0-rc7+ #260 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+0x194/0x257 lib/dump_stack.c:53 print_deadlock_bug kernel/locking/lockdep.c:1756 [inline] check_deadlock kernel/locking/lockdep.c:1800 [inline] validate_chain kernel/locking/lockdep.c:2396 [inline] __lock_acquire+0xe8f/0x3e00 kernel/locking/lockdep.c:3426 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3914 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:310 [inline] __netif_tx_lock include/linux/netdevice.h:3537 [inline] sch_direct_xmit+0x280/0x6d0 net/sched/sch_generic.c:185 __dev_xmit_skb net/core/dev.c:3201 [inline] __dev_queue_xmit+0x1ce2/0x2920 net/core/dev.c:3468 dev_queue_xmit+0x17/0x20 net/core/dev.c:3533 neigh_resolve_output+0x5e2/0xa00 net/core/neighbour.c:1350 neigh_output include/net/neighbour.h:482 [inline] ip_finish_output2+0x8d2/0x1500 net/ipv4/ip_output.c:229 ip_finish_output+0x864/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip_mc_output+0x277/0x1360 net/ipv4/ip_output.c:390 dst_output include/net/dst.h:460 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 iptunnel_xmit+0x556/0x810 net/ipv4/ip_tunnel_core.c:91 ip_tunnel_xmit+0x1780/0x3650 net/ipv4/ip_tunnel.c:786 __gre_xmit+0x546/0x8b0 net/ipv4/ip_gre.c:436 erspan_xmit+0x409/0x13b0 net/ipv4/ip_gre.c:742 __netdev_start_xmit include/linux/netdevice.h:4042 [inline] netdev_start_xmit include/linux/netdevice.h:4051 [inline] xmit_one net/core/dev.c:3003 [inline] dev_hard_start_xmit+0x24e/0xac0 net/core/dev.c:3019 sch_direct_xmit+0x31d/0x6d0 net/sched/sch_generic.c:187 __dev_xmit_skb net/core/dev.c:3201 [inline] __dev_queue_xmit+0x1ce2/0x2920 net/core/dev.c:3468 dev_queue_xmit+0x17/0x20 net/core/dev.c:3533 neigh_resolve_output+0x5e2/0xa00 net/core/neighbour.c:1350 neigh_output include/net/neighbour.h:482 [inline] ip_finish_output2+0x8d2/0x1500 net/ipv4/ip_output.c:229 ip_finish_output+0x864/0xd10 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip_mc_output+0x277/0x1360 net/ipv4/ip_output.c:390 dst_output include/net/dst.h:460 [inline] ip_local_out+0x95/0x160 net/ipv4/ip_output.c:124 ip_send_skb+0x3c/0xc0 net/ipv4/ip_output.c:1414 ip_push_pending_frames+0x64/0x80 net/ipv4/ip_output.c:1434 icmp_push_reply+0x395/0x4f0 net/ipv4/icmp.c:394 icmp_send+0x1148/0x19d0 net/ipv4/icmp.c:741 ip_options_compile+0xc21/0x1a50 net/ipv4/ip_options.c:472 ip_rcv_options net/ipv4/ip_input.c:284 [inline] ip_rcv_finish+0x80f/0x1e30 net/ipv4/ip_input.c:365 NF_HOOK include/linux/netfilter.h:250 [inline] ip_rcv+0xc5a/0x1840 net/ipv4/ip_input.c:493 __netif_receive_skb_core+0x1a41/0x3460 net/core/dev.c:4473 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4538 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4611 napi_frags_finish net/core/dev.c:5052 [inline] napi_gro_frags+0x58a/0xaf0 net/core/dev.c:5125 tun_get_user+0x262e/0x3710 drivers/net/tun.c:1757 tun_chr_write_iter+0xb9/0x160 drivers/net/tun.c:1800 call_write_iter include/linux/fs.h:1772 [inline] do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653 do_iter_write+0x154/0x540 fs/read_write.c:932 vfs_writev+0x18a/0x340 fs/read_write.c:977 do_writev+0xfc/0x2a0 fs/read_write.c:1012 SYSC_writev fs/read_write.c:1085 [inline] SyS_writev+0x27/0x30 fs/read_write.c:1082 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x444f50 RSP: 002b:00007ffc71764ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00000000004a6852 RCX: 0000000000444f50 RDX: 0000000000000001 RSI: 00007ffc71764b10 RDI: 0000000000000003 RBP: 00007ffc71764c08 R08: 0000000000000023 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc71764c08 R13: 0000000000402520 R14: 0000000000000000 R15: 0000000000000000 syzkaller218108 (3657) used greatest stack depth: 11920 b
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci-upstream-kasan-gce | 2018/01/13 18:16 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce | 2018/01/13 17:44 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce | 2018/01/13 16:50 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce | 2018/01/13 16:39 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce-386 | 2018/01/13 17:50 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce-386 | 2018/01/13 17:19 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce-386 | 2018/01/13 16:58 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce-386 | 2018/01/13 16:47 | upstream | c92a9a461dff | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-net-kasan-gce | 2018/01/13 17:22 | net-next | 6bd39bc3da0f | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-net-kasan-gce | 2018/01/13 17:10 | net-next | 6bd39bc3da0f | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-net-kasan-gce | 2018/01/13 17:00 | net-next | 6bd39bc3da0f | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-net-kasan-gce | 2018/01/13 16:37 | net-next | 6bd39bc3da0f | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-next-kasan-gce | 2018/01/13 18:51 | linux-next | 3e53c7415294 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-mmots-kasan-gce | 2018/01/13 18:06 | mmots | ce3c209f6733 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-mmots-kasan-gce | 2018/01/13 17:44 | mmots | ce3c209f6733 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-next-kasan-gce | 2018/01/13 17:15 | linux-next | 3e53c7415294 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-mmots-kasan-gce | 2018/01/13 17:14 | mmots | ce3c209f6733 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-next-kasan-gce | 2018/01/13 16:54 | linux-next | 3e53c7415294 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-mmots-kasan-gce | 2018/01/13 16:54 | mmots | ce3c209f6733 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-next-kasan-gce | 2018/01/13 16:44 | linux-next | 3e53c7415294 | c9e7aeae | .config | console log | report | syz | C | |||
ci-upstream-kasan-gce | 2019/11/26 09:48 | upstream | 0be0ee71816b | f746151a | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/31 07:09 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/31 05:59 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/31 03:44 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/31 00:40 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce-root | 2018/03/30 18:37 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/30 16:43 | upstream | c2a9838452a4 | d47f0ed6 | .config | console log | report | |||||
ci-upstream-kasan-gce-root | 2018/03/30 15:29 | upstream | c2a9838452a4 | d47f0ed6 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/30 12:28 | upstream | c2a9838452a4 | d47f0ed6 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/30 10:21 | upstream | c2a9838452a4 | d47f0ed6 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/29 11:29 | upstream | 0b412605ef5f | d47f0ed6 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/24 08:46 | upstream | 99fec39e7725 | 2e9d9054 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/03/23 16:45 | upstream | f36b7534b833 | 2e9d9054 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/27 00:35 | upstream | 4a3928c6f8a5 | b370d4a7 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/26 10:31 | upstream | c89be5242607 | 9fe8aa42 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/26 00:57 | upstream | c89be5242607 | 9fe8aa42 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/25 13:18 | upstream | 3664ce2d9309 | 5c1e0207 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/24 23:30 | upstream | 9cb9c07d6b0c | 5c1e0207 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/24 11:38 | upstream | 938e1426e262 | 5c1e0207 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/24 09:40 | upstream | 938e1426e262 | 5c1e0207 | .config | console log | report | |||||
ci-upstream-kasan-gce | 2018/02/23 22:35 | upstream | 0f9da844d877 | 33464158 | .config | console log | report | |||||
ci-upstream-kasan-gce-386 | 2018/03/30 20:55 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | |||||
ci-upstream-kasan-gce-386 | 2018/03/15 20:21 | upstream | 0aa3fdb8b3a6 | 08dacaa0 | .config | console log | report | |||||
ci-upstream-kasan-gce-386 | 2018/03/08 16:06 | upstream | 1b88accf6a65 | acd0caa5 | .config | console log | report | |||||
ci-upstream-kasan-gce-386 | 2018/03/06 13:22 | upstream | 094b58e1040a | aef0b792 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2019/09/21 06:17 | net-next | b41dae061bbd | d96e88f3 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/04/03 12:06 | net-next | 159f02977b2f | 676bd07e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/04/03 10:46 | net-next | 159f02977b2f | 676bd07e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/04/02 21:33 | net-next | 159f02977b2f | 676bd07e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/04/01 12:52 | net-next | 06b19fe9a6df | 0a78e248 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/04/01 03:13 | net-next | 8bde261e5352 | 0174c6c8 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/28 23:43 | net-next | 5d22d47b9ed9 | bf5e585c | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/27 23:17 | net-next | 5d22d47b9ed9 | bf5e585c | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/27 19:04 | net-next | 34fd03b9e6a6 | bf5e585c | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/25 17:38 | net-next | 94cb54924092 | e033c1f1 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/24 22:35 | net-next | 94cb54924092 | 2e9d9054 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/24 15:26 | net-next | 94cb54924092 | 2e9d9054 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/24 00:25 | net-next | f452518c982e | 2e9d9054 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/22 16:47 | net-next | aa65f6365405 | 2e9d9054 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/22 07:14 | net-next | 454bfe97837a | 95c88d7a | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/18 14:32 | net-next | 76f38f1f3cf8 | 08dacaa0 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/16 18:09 | net-next | 0aee4c259849 | 08dacaa0 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/16 05:17 | net-next | 80d9f3a0fdb8 | 08dacaa0 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/15 02:55 | net-next | c292566a7779 | 08dacaa0 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/13 13:32 | net-next | 9ba32046fc2d | 08dacaa0 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/13 02:42 | net-next | 129cf5f7f196 | f505ca4b | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/12 22:12 | net-next | 129cf5f7f196 | f505ca4b | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/09 10:41 | net-next | fd372a7a9e5e | 36d1c454 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/09 09:26 | net-next | fd372a7a9e5e | 36d1c454 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/08 04:08 | net-next | a366e300ae9f | d50edb7e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/05 00:36 | net-next | efab163bbc19 | 2c6f473e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/03/01 23:03 | net-next | f1c02cfb7b30 | 2c6f473e | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/02/28 20:38 | net-next | fb66cb077560 | 05b5a32c | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/02/27 11:15 | net-next | 3808b51911fe | 05b5a32c | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/02/27 07:44 | net-next | ba6056a41cb0 | b370d4a7 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/02/27 03:43 | net-next | ba6056a41cb0 | b370d4a7 | .config | console log | report | |||||
ci-upstream-net-kasan-gce | 2018/02/26 17:11 | net-next | ba6056a41cb0 | 9fe8aa42 | .config | console log | report |