syzkaller login: [ 65.547696][ T37] audit: type=1400 audit(1575101335.152:41): avc: denied { map } for pid=7962 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '[localhost]:22746' (ECDSA) to the list of known hosts. [ 67.851603][ T37] audit: type=1400 audit(1575101337.452:42): avc: denied { map } for pid=7972 comm="syz-fuzzer" path="/syz-fuzzer" dev="sda1" ino=16525 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 2019/11/30 08:08:57 fuzzer started 2019/11/30 08:08:58 dialing manager at 10.0.2.10:40921 2019/11/30 08:08:58 syscalls: 2533 2019/11/30 08:08:58 code coverage: enabled 2019/11/30 08:08:58 comparison tracing: enabled 2019/11/30 08:08:58 extra coverage: extra coverage is not supported by the kernel 2019/11/30 08:08:58 setuid sandbox: enabled 2019/11/30 08:08:58 namespace sandbox: enabled 2019/11/30 08:08:58 Android sandbox: /sys/fs/selinux/policy does not exist 2019/11/30 08:08:58 fault injection: enabled 2019/11/30 08:08:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/11/30 08:08:58 net packet injection: enabled 2019/11/30 08:08:58 net device setup: enabled 2019/11/30 08:08:58 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/11/30 08:08:58 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:09:09 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_mreq(r0, 0x29, 0x1b, &(0x7f0000000100)={@dev}, 0xf0) [ 80.008182][ T37] audit: type=1400 audit(1575101349.612:43): avc: denied { map } for pid=7997 comm="syz-executor.0" path="/sys/kernel/debug/kcov" dev="debugfs" ino=54 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 08:09:09 executing program 1: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f00000000c0)=0x2000000000000074, 0x25d) bind$inet(r0, &(0x7f0000000280)={0x2, 0x4e23, @multicast1}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000480)={0x1, &(0x7f0000000400)=[{0x6, 0x0, 0x0, 0xe5}]}, 0x10) sendto$inet(r0, 0x0, 0x0, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) perf_event_open(&(0x7f0000000880)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f00000012c0)="20268a927f1f6588b967481241ba7860f46ef65ac618ded8974895abeaf4b4834ff922b3f1e0b02bd67aa03059bcecc7a95c25a3a07e758044ab4ea6f7ae55d88fecf9221a750fbf746bec66ba", 0xfe6a, 0xe, 0x0, 0xfffffffffffffe2b) [ 80.165269][ T7998] IPVS: ftp: loaded support on port[0] = 21 [ 80.198090][ T8000] IPVS: ftp: loaded support on port[0] = 21 [ 80.255038][ T7998] chnl_net:caif_netlink_parms(): no params data found [ 80.304389][ T7998] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.311497][ T7998] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.319113][ T7998] device bridge_slave_0 entered promiscuous mode [ 80.327933][ T7998] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.334507][ T7998] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.341672][ T7998] device bridge_slave_1 entered promiscuous mode [ 80.348828][ T8000] chnl_net:caif_netlink_parms(): no params data found [ 80.374208][ T7998] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.387709][ T7998] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.405283][ T8000] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.412589][ T8000] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.420405][ T8000] device bridge_slave_0 entered promiscuous mode [ 80.431234][ T8000] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.438534][ T8000] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.446130][ T8000] device bridge_slave_1 entered promiscuous mode [ 80.454464][ T7998] team0: Port device team_slave_0 added [ 80.464371][ T7998] team0: Port device team_slave_1 added [ 80.475250][ T8000] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.486217][ T8000] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.598042][ T7998] device hsr_slave_0 entered promiscuous mode [ 80.665916][ T7998] device hsr_slave_1 entered promiscuous mode [ 80.717860][ T8000] team0: Port device team_slave_0 added [ 80.724630][ T8000] team0: Port device team_slave_1 added [ 80.807793][ T8000] device hsr_slave_0 entered promiscuous mode [ 80.856786][ T8000] device hsr_slave_1 entered promiscuous mode [ 80.915831][ T8000] debugfs: Directory 'hsr0' with parent '/' already present! [ 80.938253][ T37] audit: type=1400 audit(1575101350.542:44): avc: denied { create } for pid=7998 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 80.938770][ T37] audit: type=1400 audit(1575101350.542:45): avc: denied { write } for pid=7998 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 80.985055][ T37] audit: type=1400 audit(1575101350.542:46): avc: denied { read } for pid=7998 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 80.985320][ T7998] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.079788][ T7998] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.180824][ T7998] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.229547][ T7998] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.277764][ T8000] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 81.317433][ T8000] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 81.377521][ T8000] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 81.427257][ T8000] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 81.591709][ T7998] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.610002][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.618093][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.629002][ T8000] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.637123][ T7998] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.647503][ T1203] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.655956][ T1203] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.664115][ T1203] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.671174][ T1203] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.679716][ T1203] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.689480][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.697612][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.705228][ T3067] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.711738][ T3067] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.720684][ T8006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 81.728421][ T8006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.737824][ T8000] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.746379][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.756095][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 81.764334][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.773072][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.780170][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.788834][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 81.796842][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.809192][ T8004] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 81.817748][ T8004] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.826516][ T8004] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.833436][ T8004] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.844468][ T8007] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.853182][ T8007] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.861611][ T8007] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.872429][ T8004] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 81.881929][ T8004] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.890270][ T8004] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.902141][ T8006] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 81.910394][ T8006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 81.918514][ T8006] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.929091][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 81.937321][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.945024][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 81.953172][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.961977][ T7998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.972050][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.984313][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 81.992595][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.000971][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 82.009405][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.023328][ T8000] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.034725][ T8000] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.043200][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 82.051272][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.059814][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.067182][ T28] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.080776][ T7998] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.093239][ T8007] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.093958][ T37] audit: type=1400 audit(1575101351.692:47): avc: denied { associate } for pid=7998 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 82.102099][ T8007] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.106218][ T8000] 8021q: adding VLAN 0 to HW filter on device batadv0 08:09:11 executing program 0: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000040)={'syz', 0x3}, &(0x7f0000000340)="585ccbe4ed83b836c1a6474914dc55e72206297b6895b66147b3c7218a9169a85ea0bdc9e1587a050000000000000042e33089754c8107c3cd3923dd4a71c2ff06007b6b4816122d2550829eaa9435c99926022b8753a188748c569f435fb3bae96efb74b50ec93c152f5e8e198a29e5c0d0c60000ce0637ce003d661ff5ff70e48884ca000018cea71fcfacf40d32e4b58a8d2725561f6110fd7b06f90b5274cc5c1e298a16324fe27da2a9d5ba9ff3c009d308bd73f4772539", 0x2c5, 0xfffffffffffffffe) r1 = add_key$user(&(0x7f0000000200)='user\x00', &(0x7f00000005c0)={'syz'}, &(0x7f0000000000)="1d", 0x1, 0xfffffffffffffffd) keyctl$dh_compute(0x17, &(0x7f0000000140)={r1, r0, r1}, &(0x7f0000000440)=""/243, 0xf3, &(0x7f0000000240)={&(0x7f0000000600)={'sha3-224\x00'}}) kcmp(0x0, 0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) setfsuid(0x0) bind$alg(0xffffffffffffffff, &(0x7f0000000080)={0x26, 'rng\x00', 0x0, 0x0, 'drbg_nopr_ctr_aes128\x00'}, 0x58) [ 82.253358][ T37] audit: type=1400 audit(1575101351.852:48): avc: denied { open } for pid=8012 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=perf_event permissive=1 [ 82.278064][ T37] audit: type=1400 audit(1575101351.862:49): avc: denied { kernel } for pid=8012 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=perf_event permissive=1 [ 82.418614][ C3] hrtimer: interrupt took 27022 ns [ 234.482677][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.0:8016] [ 234.485627][ C0] Modules linked in: [ 234.485627][ C0] irq event stamp: 5217563 [ 234.485627][ C0] hardirqs last enabled at (5217562): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 234.485627][ C0] hardirqs last disabled at (5217563): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 234.485627][ C0] softirqs last enabled at (0): [] copy_process+0x1822/0x69e0 [ 234.485627][ C0] softirqs last disabled at (379): [] irq_exit+0x19b/0x1e0 [ 234.485627][ C0] CPU: 0 PID: 8016 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 234.485627][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 234.485627][ C0] RIP: 0010:stack_depot_save+0x0/0x450 [ 234.485627][ C0] Code: 07 00 00 00 00 c3 48 89 0c d5 e0 69 ca 8b b8 01 00 00 00 48 c7 07 00 00 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 65 48 8b 04 25 [ 234.485627][ C0] RSP: 0018:ffff88802d2098f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 234.485627][ C0] RAX: 0000000000000009 RBX: ffff88802904cae0 RCX: ffffffff87e00262 [ 234.485627][ C0] RDX: 0000000000000a20 RSI: 000000000000000a RDI: ffff88802d209900 [ 234.485627][ C0] RBP: ffff88802d209b08 R08: 0000000000000006 R09: ffff8880725b8910 [ 234.485627][ C0] R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: 0000000000000a20 [ 234.485627][ C0] R13: ffff88802904ca00 R14: 0000000000000000 R15: ffff88807ab28000 [ 234.485627][ C0] FS: 00007fa5c6d92700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000 [ 234.485627][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 234.485627][ C0] CR2: 000000000232fca0 CR3: 000000006c65f000 CR4: 00000000003406f0 [ 234.485627][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 234.485627][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 234.485627][ C0] Call Trace: [ 234.485627][ C0] [ 234.485627][ C0] ? save_stack+0x5c/0x90 [ 234.485627][ C0] ? save_stack+0x23/0x90 [ 234.485627][ C0] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 234.485627][ C0] ? kasan_slab_alloc+0xf/0x20 [ 234.485627][ C0] ? kmem_cache_alloc_node+0x138/0x740 [ 234.485627][ C0] ? __alloc_skb+0xd5/0x5e0 [ 234.485627][ C0] ? br_ifinfo_notify+0xa6/0x1d0 [ 234.485627][ C0] ? br_forward_delay_timer_expired+0x11e/0x410 [ 234.485627][ C0] ? call_timer_fn+0x1ac/0x780 [ 234.485627][ C0] ? run_timer_softirq+0x6c3/0x1790 [ 234.485627][ C0] ? __do_softirq+0x262/0x98c [ 234.485627][ C0] ? irq_exit+0x19b/0x1e0 [ 234.485627][ C0] ? smp_apic_timer_interrupt+0x1a3/0x610 [ 234.485627][ C0] ? apic_timer_interrupt+0xf/0x20 [ 234.485627][ C0] ? generic_exec_single+0x33a/0x4c0 [ 234.485627][ C0] ? smp_call_function_single+0x17c/0x480 [ 234.485627][ C0] ? task_function_call+0xe9/0x180 [ 234.485627][ C0] ? perf_install_in_context+0x308/0x5a0 [ 234.485627][ C0] ? __do_sys_perf_event_open+0x1cbc/0x2c70 [ 234.485627][ C0] ? __x64_sys_perf_event_open+0xbe/0x150 [ 234.485627][ C0] ? do_syscall_64+0xfa/0x790 [ 234.485627][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 234.485627][ C0] ? __kasan_check_read+0x11/0x20 [ 234.485627][ C0] ? mark_lock+0xc2/0x1220 [ 234.485627][ C0] ? __kasan_check_write+0x14/0x20 [ 234.485627][ C0] ? sched_clock_local+0xdf/0x150 [ 234.485627][ C0] ? __kasan_check_read+0x11/0x20 [ 234.485627][ C0] ? mark_lock+0xc2/0x1220 [ 234.485627][ C0] ? should_fail+0x1de/0x852 [ 234.485627][ C0] ? mark_held_locks+0xa4/0xf0 [ 234.485627][ C0] ? trace_hardirqs_on_caller+0x6a/0x240 [ 234.485627][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 234.485627][ C0] ? __alloc_skb+0xd5/0x5e0 [ 234.485627][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 234.485627][ C0] ? kasan_unpoison_shadow+0x35/0x50 [ 234.485627][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 234.485627][ C0] kasan_slab_alloc+0xf/0x20 [ 234.485627][ C0] kmem_cache_alloc_node+0x138/0x740 [ 234.485627][ C0] ? lock_downgrade+0x920/0x920 [ 234.485627][ C0] __alloc_skb+0xd5/0x5e0 [ 234.485627][ C0] ? __kmalloc_reserve.isra.0+0xf0/0xf0 [ 234.888679][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 234.888679][ C0] ? br_get_link_af_size_filtered+0x1b1/0xa00 [ 234.888679][ C0] br_ifinfo_notify+0xa6/0x1d0 [ 234.888679][ C0] br_forward_delay_timer_expired+0x11e/0x410 [ 234.888679][ C0] call_timer_fn+0x1ac/0x780 [ 234.888679][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 234.888679][ C0] ? msleep_interruptible+0x150/0x150 [ 234.888679][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 234.888679][ C0] run_timer_softirq+0x6c3/0x1790 [ 234.888679][ C0] ? add_timer+0x930/0x930 [ 234.888679][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 234.888679][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 234.888679][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 234.888679][ C0] __do_softirq+0x262/0x98c [ 234.888679][ C0] ? sched_clock_cpu+0x14e/0x1b0 [ 234.888679][ C0] irq_exit+0x19b/0x1e0 [ 234.888679][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 234.888679][ C0] apic_timer_interrupt+0xf/0x20 [ 234.888679][ C0] [ 234.888679][ C0] RIP: 0010:generic_exec_single+0x33a/0x4c0 [ 234.888679][ C0] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 68 01 00 00 48 83 3d 2e 81 e9 07 00 0f 84 e0 00 00 00 e8 eb 2a 0b 00 48 89 df 57 9d <0f> 1f 44 00 00 45 31 ed e9 39 fe ff ff e8 d4 2a 0b 00 0f 0b e9 23 [ 234.888679][ C0] RSP: 0018:ffff8880725c7a80 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 234.888679][ C0] RAX: 0000000000040000 RBX: 0000000000000216 RCX: ffffc9000409c000 [ 234.888679][ C0] RDX: 000000000000131a RSI: ffffffff8169b335 RDI: 0000000000000216 [ 234.888679][ C0] RBP: ffff8880725c7ab0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 [ 234.888679][ C0] R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: 0000000000000200 [ 234.888679][ C0] R13: ffff8880725c7b00 R14: ffff8880725c7bd0 R15: ffffffff818bd170 [ 234.888679][ C0] ? perf_duration_warn+0x40/0x40 [ 234.888679][ C0] ? generic_exec_single+0x335/0x4c0 [ 234.888679][ C0] ? __perf_event_enable+0x930/0x930 [ 234.888679][ C0] smp_call_function_single+0x17c/0x480 [ 234.888679][ C0] ? perf_duration_warn+0x40/0x40 [ 234.888679][ C0] ? generic_exec_single+0x4c0/0x4c0 [ 234.888679][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 234.888679][ C0] ? __perf_event_enable+0x930/0x930 [ 234.888679][ C0] task_function_call+0xe9/0x180 [ 234.888679][ C0] ? perf_event_addr_filters_exec+0x310/0x310 [ 234.888679][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 234.888679][ C0] ? __perf_event_enable+0x930/0x930 [ 234.888679][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 234.888679][ C0] ? exclusive_event_installable+0x257/0x320 [ 234.888679][ C0] perf_install_in_context+0x308/0x5a0 [ 234.888679][ C0] ? list_add_event+0xed0/0xed0 [ 234.888679][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 234.888679][ C0] ? __perf_event_header_size.isra.0+0x166/0x1c0 [ 234.888679][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 234.888679][ C0] __do_sys_perf_event_open+0x1cbc/0x2c70 [ 234.888679][ C0] ? perf_event_set_output+0x4e0/0x4e0 [ 234.888679][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 234.888679][ C0] ? put_timespec64+0xda/0x140 [ 234.888679][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 234.888679][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 234.888679][ C0] ? do_syscall_64+0x26/0x790 [ 234.888679][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 234.888679][ C0] ? do_syscall_64+0x26/0x790 [ 234.888679][ C0] __x64_sys_perf_event_open+0xbe/0x150 [ 234.888679][ C0] do_syscall_64+0xfa/0x790 [ 234.888679][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 234.888679][ C0] RIP: 0033:0x45a759 [ 234.888679][ C0] Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 234.888679][ C0] RSP: 002b:00007fa5c6d91c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 234.888679][ C0] RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 [ 234.888679][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002001d000 [ 234.888679][ C0] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 [ 234.888679][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa5c6d926d4 [ 234.888679][ C0] R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff [ 234.888679][ C0] Sending NMI from CPU 0 to CPUs 1-3: [ 235.317849][ C1] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 [ 235.317858][ C3] NMI backtrace for cpu 3 skipped: idling at native_safe_halt+0xe/0x10 [ 235.318511][ C2] NMI backtrace for cpu 2 [ 235.318515][ C2] CPU: 2 PID: 8013 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 [ 235.318521][ C2] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 235.318523][ C2] RIP: 0010:ipip_tunnel_xmit+0x0/0x500 [ 235.318532][ C2] Code: bc f2 ff ff ff e9 b6 fe ff ff 48 8b 7c 24 10 e8 b6 c0 1c fb e9 1a fe ff ff e8 6c 42 b0 fa 48 8b 7c 24 10 e8 a2 c0 1c fb eb ae <55> 48 89 e5 41 57 41 56 41 55 49 89 f5 41 54 49 89 fc 53 48 83 ec [ 235.318535][ C2] RSP: 0018:ffff88802d409550 EFLAGS: 00010246 [ 235.318540][ C2] RAX: 1ffffffff117aac4 RBX: dffffc0000000000 RCX: ffffffff8390583c [ 235.318544][ C2] RDX: 0000000000000100 RSI: ffff88801d0b4000 RDI: ffff888014d34dc0 [ 235.318547][ C2] RBP: ffff88802d4095c0 R08: ffff888072444040 R09: ffffed1005a87045 [ 235.318551][ C2] R10: ffffed1005a87044 R11: ffff88802d438223 R12: ffff888014d34dc0 [ 235.318554][ C2] R13: ffffffff88bd5600 R14: ffff88801d0b4000 R15: ffff88801d0b4000 [ 235.318558][ C2] FS: 00007fa252f8b700(0000) GS:ffff88802d400000(0000) knlGS:0000000000000000 [ 235.318561][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 235.318564][ C2] CR2: 000000c000191fd0 CR3: 0000000071dd6000 CR4: 00000000003406e0 [ 235.318568][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 235.318571][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 235.318573][ C2] Call Trace: [ 235.318575][ C2] [ 235.318577][ C2] ? dev_hard_start_xmit+0x1a3/0x9b0 [ 235.318580][ C2] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 235.318583][ C2] __dev_queue_xmit+0x2b05/0x35c0 [ 235.318585][ C2] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 235.318587][ C2] ? mark_held_locks+0xf0/0xf0 [ 235.318590][ C2] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 235.318593][ C2] ? debug_smp_processor_id+0x33/0x18a [ 235.318596][ C2] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 235.318598][ C2] ? rcu_read_lock_held_common+0xbd/0x130 [ 235.318601][ C2] dev_queue_xmit+0x18/0x20 [ 235.318603][ C2] ? dev_queue_xmit+0x18/0x20 [ 235.318605][ C2] neigh_direct_output+0x16/0x20 [ 235.318608][ C2] ip6_finish_output2+0x109a/0x25c0 [ 235.318610][ C2] ? ip6_frag_next+0xb20/0xb20 [ 235.318612][ C2] ? lock_downgrade+0x920/0x920 [ 235.318615][ C2] ? rcu_read_lock_held+0x9c/0xb0 [ 235.318617][ C2] ? __kasan_check_read+0x11/0x20 [ 235.318620][ C2] __ip6_finish_output+0x444/0xaa0 [ 235.318622][ C2] ? __ip6_finish_output+0x444/0xaa0 [ 235.318624][ C2] ip6_finish_output+0x38/0x1f0 [ 235.318627][ C2] ip6_output+0x25e/0x880 [ 235.318629][ C2] ? ip6_finish_output+0x1f0/0x1f0 [ 235.318632][ C2] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 235.318634][ C2] ? __ip6_finish_output+0xaa0/0xaa0 [ 235.318637][ C2] ? rcu_read_lock_held_common+0x130/0x130 [ 235.318639][ C2] ndisc_send_skb+0xf1f/0x1490 [ 235.318642][ C2] ? nf_hook.constprop.0+0x560/0x560 [ 235.318644][ C2] ? memset+0x32/0x40 [ 235.318646][ C2] ndisc_send_rs+0x134/0x720 [ 235.318649][ C2] addrconf_rs_timer+0x30f/0x6e0 [ 235.318651][ C2] ? ipv6_get_lladdr+0x490/0x490 [ 235.318654][ C2] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 235.318656][ C2] call_timer_fn+0x1ac/0x780 [ 235.318659][ C2] ? ipv6_get_lladdr+0x490/0x490 [ 235.318662][ C2] ? msleep_interruptible+0x150/0x150 [ 235.318664][ C2] ? run_timer_softirq+0x6b1/0x1790 [ 235.318667][ C2] ? trace_hardirqs_on+0x67/0x240 [ 235.318669][ C2] ? ipv6_get_lladdr+0x490/0x490 [ 235.318672][ C2] ? ipv6_get_lladdr+0x490/0x490 [ 235.318674][ C2] run_timer_softirq+0x6c3/0x1790 [ 235.318676][ C2] ? add_timer+0x930/0x930 [ 235.318679][ C2] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 235.318682][ C2] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 235.318685][ C2] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 235.318687][ C2] __do_softirq+0x262/0x98c [ 235.318689][ C2] ? sched_clock_cpu+0x14e/0x1b0 [ 235.318691][ C2] irq_exit+0x19b/0x1e0 [ 235.318694][ C2] smp_apic_timer_interrupt+0x1a3/0x610 [ 235.318696][ C2] apic_timer_interrupt+0xf/0x20 [ 235.318698][ C2] [ 235.318701][ C2] RIP: 0010:_raw_spin_unlock_irq+0x4f/0x80 [ 235.318708][ C2] Code: c0 68 34 53 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 12 2a 99 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e7 6b 96 f9 65 8b 05 18 14 48 78 85 c0 74 06 41 [ 235.318711][ C2] RSP: 0018:ffff88807244f8d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 235.318717][ C2] RAX: 1ffffffff12a668d RBX: ffff888072444040 RCX: 0000000000000006 [ 235.318721][ C2] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880724448d4 [ 235.318724][ C2] RBP: ffff88807244f8e0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 [ 235.318727][ C2] R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88802d437380 [ 235.318731][ C2] R13: ffff88802c4bc3c0 R14: ffff888026762240 R15: 0000000000000000 [ 235.318733][ C2] ? _raw_spin_unlock_irq+0x23/0x80 [ 235.318736][ C2] finish_task_switch+0x147/0x750 [ 235.318738][ C2] ? finish_task_switch+0x119/0x750 [ 235.318740][ C2] __schedule+0x8e9/0x1f30 [ 235.318743][ C2] ? __sched_text_start+0x8/0x8 [ 235.318745][ C2] ? __this_cpu_preempt_check+0x35/0x190 [ 235.318748][ C2] ? retint_kernel+0x2b/0x2b [ 235.318750][ C2] ? perf_duration_warn+0x40/0x40 [ 235.318752][ C2] ? preempt_schedule+0x4b/0x60 [ 235.318755][ C2] preempt_schedule_common+0x4f/0xe0 [ 235.318757][ C2] ? __perf_event_enable+0x930/0x930 [ 235.318760][ C2] preempt_schedule+0x4b/0x60 [ 235.318762][ C2] ___preempt_schedule+0x16/0x18 [ 235.318765][ C2] ? smp_call_function_single+0x40b/0x480 [ 235.318767][ C2] smp_call_function_single+0x410/0x480 [ 235.318770][ C2] ? perf_duration_warn+0x40/0x40 [ 235.318772][ C2] ? generic_exec_single+0x4c0/0x4c0 [ 235.318775][ C2] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 235.318777][ C2] ? __perf_event_enable+0x930/0x930 [ 235.318780][ C2] task_function_call+0xe9/0x180 [ 235.318783][ C2] ? perf_event_addr_filters_exec+0x310/0x310 [ 235.318785][ C2] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 235.318788][ C2] ? __perf_event_enable+0x930/0x930 [ 235.318791][ C2] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 235.318793][ C2] ? exclusive_event_installable+0x257/0x320 [ 235.318796][ C2] perf_install_in_context+0x308/0x5a0 [ 235.318798][ C2] ? list_add_event+0xed0/0xed0 [ 235.318801][ C2] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 235.318804][ C2] ? __perf_event_header_size.isra.0+0x166/0x1c0 [ 235.318807][ C2] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 235.318809][ C2] __do_sys_perf_event_open+0x1cbc/0x2c70 [ 235.318812][ C2] ? perf_event_set_output+0x4e0/0x4e0 [ 235.318815][ C2] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 235.318817][ C2] ? put_timespec64+0xda/0x140 [ 235.318820][ C2] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 235.318822][ C2] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 235.318825][ C2] ? do_syscall_64+0x26/0x790 [ 235.318827][ C2] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 235.318830][ C2] ? do_syscall_64+0x26/0x790 [ 235.318832][ C2] __x64_sys_perf_event_open+0xbe/0x150 [ 235.318835][ C2] do_syscall_64+0xfa/0x790 [ 235.318838][ C2] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 235.318840][ C2] RIP: 0033:0x45a759 [ 235.318848][ C2] Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 235.318851][ C2] RSP: 002b:00007fa252f8ac88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 235.318857][ C2] RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 [ 235.318860][ C2] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000880 [ 235.318864][ C2] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 [ 235.318867][ C2] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa252f8b6d4 [ 235.318871][ C2] R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff [ 234.888679][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 235.888655][ C0] CPU: 0 PID: 8016 Comm: syz-executor.0 Tainted: G L 5.4.0-syzkaller #0 [ 235.888655][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 235.888655][ C0] Call Trace: [ 235.888655][ C0] [ 235.888655][ C0] dump_stack+0x197/0x210 [ 236.131829][ C0] panic+0x2e3/0x75c [ 236.131829][ C0] ? add_taint.cold+0x16/0x16 [ 236.131829][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.131829][ C0] ? printk_safe_flush+0xf2/0x140 [ 236.131829][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 236.131829][ C0] ? watchdog_timer_fn.cold+0x5/0x33 [ 236.131829][ C0] ? watchdog_timer_fn+0x56e/0x5c0 [ 236.131829][ C0] watchdog_timer_fn.cold+0x16/0x33 [ 236.131829][ C0] __hrtimer_run_queues+0x364/0xe40 [ 236.131829][ C0] ? lockup_detector_update_enable+0xa0/0xa0 [ 236.131829][ C0] ? hrtimer_init+0x330/0x330 [ 236.131829][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.131829][ C0] ? ktime_get_update_offsets_now+0x2ce/0x430 [ 236.131829][ C0] hrtimer_interrupt+0x314/0x770 [ 236.131829][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 236.131829][ C0] apic_timer_interrupt+0xf/0x20 [ 236.131829][ C0] RIP: 0010:stack_depot_save+0x0/0x450 [ 236.131829][ C0] Code: 07 00 00 00 00 c3 48 89 0c d5 e0 69 ca 8b b8 01 00 00 00 48 c7 07 00 00 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 65 48 8b 04 25 [ 236.131829][ C0] RSP: 0018:ffff88802d2098f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 236.131829][ C0] RAX: 0000000000000009 RBX: ffff88802904cae0 RCX: ffffffff87e00262 [ 236.131829][ C0] RDX: 0000000000000a20 RSI: 000000000000000a RDI: ffff88802d209900 [ 236.131829][ C0] RBP: ffff88802d209b08 R08: 0000000000000006 R09: ffff8880725b8910 [ 236.131829][ C0] R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: 0000000000000a20 [ 236.131829][ C0] R13: ffff88802904ca00 R14: 0000000000000000 R15: ffff88807ab28000 [ 236.131829][ C0] ? apic_timer_interrupt+0xa/0x20 [ 236.131829][ C0] ? __do_softirq+0x262/0x98c [ 236.131829][ C0] ? save_stack+0x5c/0x90 [ 236.131829][ C0] ? save_stack+0x23/0x90 [ 236.131829][ C0] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 236.131829][ C0] ? kasan_slab_alloc+0xf/0x20 [ 236.131829][ C0] ? kmem_cache_alloc_node+0x138/0x740 [ 236.131829][ C0] ? __alloc_skb+0xd5/0x5e0 [ 236.131829][ C0] ? br_ifinfo_notify+0xa6/0x1d0 [ 236.131829][ C0] ? br_forward_delay_timer_expired+0x11e/0x410 [ 236.131829][ C0] ? call_timer_fn+0x1ac/0x780 [ 236.131829][ C0] ? run_timer_softirq+0x6c3/0x1790 [ 236.131829][ C0] ? __do_softirq+0x262/0x98c [ 236.131829][ C0] ? irq_exit+0x19b/0x1e0 [ 236.131829][ C0] ? smp_apic_timer_interrupt+0x1a3/0x610 [ 236.131829][ C0] ? apic_timer_interrupt+0xf/0x20 [ 236.131829][ C0] ? generic_exec_single+0x33a/0x4c0 [ 236.131829][ C0] ? smp_call_function_single+0x17c/0x480 [ 236.131829][ C0] ? task_function_call+0xe9/0x180 [ 236.131829][ C0] ? perf_install_in_context+0x308/0x5a0 [ 236.131829][ C0] ? __do_sys_perf_event_open+0x1cbc/0x2c70 [ 236.131829][ C0] ? __x64_sys_perf_event_open+0xbe/0x150 [ 236.131829][ C0] ? do_syscall_64+0xfa/0x790 [ 236.131829][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 236.131829][ C0] ? __kasan_check_read+0x11/0x20 [ 236.131829][ C0] ? mark_lock+0xc2/0x1220 [ 236.131829][ C0] ? __kasan_check_write+0x14/0x20 [ 236.131829][ C0] ? sched_clock_local+0xdf/0x150 [ 236.131829][ C0] ? __kasan_check_read+0x11/0x20 [ 236.131829][ C0] ? mark_lock+0xc2/0x1220 [ 236.131829][ C0] ? should_fail+0x1de/0x852 [ 236.131829][ C0] ? mark_held_locks+0xa4/0xf0 [ 236.131829][ C0] ? trace_hardirqs_on_caller+0x6a/0x240 [ 236.131829][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 236.131829][ C0] ? __alloc_skb+0xd5/0x5e0 [ 236.131829][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 236.131829][ C0] ? kasan_unpoison_shadow+0x35/0x50 [ 236.131829][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 236.131829][ C0] kasan_slab_alloc+0xf/0x20 [ 236.131829][ C0] kmem_cache_alloc_node+0x138/0x740 [ 236.131829][ C0] ? lock_downgrade+0x920/0x920 [ 236.131829][ C0] __alloc_skb+0xd5/0x5e0 [ 236.131829][ C0] ? __kmalloc_reserve.isra.0+0xf0/0xf0 [ 236.131829][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 236.131829][ C0] ? br_get_link_af_size_filtered+0x1b1/0xa00 [ 236.131829][ C0] br_ifinfo_notify+0xa6/0x1d0 [ 236.131829][ C0] br_forward_delay_timer_expired+0x11e/0x410 [ 236.131829][ C0] call_timer_fn+0x1ac/0x780 [ 236.131829][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 236.131829][ C0] ? msleep_interruptible+0x150/0x150 [ 236.131829][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 236.131829][ C0] run_timer_softirq+0x6c3/0x1790 [ 236.131829][ C0] ? add_timer+0x930/0x930 [ 236.131829][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 236.131829][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 236.131829][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 236.131829][ C0] __do_softirq+0x262/0x98c [ 236.131829][ C0] ? sched_clock_cpu+0x14e/0x1b0 [ 236.131829][ C0] irq_exit+0x19b/0x1e0 [ 236.131829][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 236.131829][ C0] apic_timer_interrupt+0xf/0x20 [ 236.131829][ C0] [ 236.131829][ C0] RIP: 0010:generic_exec_single+0x33a/0x4c0 [ 236.131829][ C0] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 68 01 00 00 48 83 3d 2e 81 e9 07 00 0f 84 e0 00 00 00 e8 eb 2a 0b 00 48 89 df 57 9d <0f> 1f 44 00 00 45 31 ed e9 39 fe ff ff e8 d4 2a 0b 00 0f 0b e9 23 [ 236.131829][ C0] RSP: 0018:ffff8880725c7a80 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 236.131829][ C0] RAX: 0000000000040000 RBX: 0000000000000216 RCX: ffffc9000409c000 [ 236.131829][ C0] RDX: 000000000000131a RSI: ffffffff8169b335 RDI: 0000000000000216 [ 236.131829][ C0] RBP: ffff8880725c7ab0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 [ 236.131829][ C0] R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: 0000000000000200 [ 236.131829][ C0] R13: ffff8880725c7b00 R14: ffff8880725c7bd0 R15: ffffffff818bd170 [ 236.131829][ C0] ? perf_duration_warn+0x40/0x40 [ 236.131829][ C0] ? generic_exec_single+0x335/0x4c0 [ 236.131829][ C0] ? __perf_event_enable+0x930/0x930 [ 236.131829][ C0] smp_call_function_single+0x17c/0x480 [ 236.131829][ C0] ? perf_duration_warn+0x40/0x40 [ 236.131829][ C0] ? generic_exec_single+0x4c0/0x4c0 [ 236.131829][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 236.131829][ C0] ? __perf_event_enable+0x930/0x930 [ 236.721587][ C0] task_function_call+0xe9/0x180 [ 236.721587][ C0] ? perf_event_addr_filters_exec+0x310/0x310 [ 236.721587][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 236.721587][ C0] ? __perf_event_enable+0x930/0x930 [ 236.721587][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 236.721587][ C0] ? exclusive_event_installable+0x257/0x320 [ 236.721587][ C0] perf_install_in_context+0x308/0x5a0 [ 236.721587][ C0] ? list_add_event+0xed0/0xed0 [ 236.721587][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 236.721587][ C0] ? __perf_event_header_size.isra.0+0x166/0x1c0 [ 236.721587][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 236.721587][ C0] __do_sys_perf_event_open+0x1cbc/0x2c70 [ 236.721587][ C0] ? perf_event_set_output+0x4e0/0x4e0 [ 236.721587][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 236.721587][ C0] ? put_timespec64+0xda/0x140 [ 236.721587][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 236.721587][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 236.721587][ C0] ? do_syscall_64+0x26/0x790 [ 236.721587][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 236.721587][ C0] ? do_syscall_64+0x26/0x790 [ 236.721587][ C0] __x64_sys_perf_event_open+0xbe/0x150 [ 236.721587][ C0] do_syscall_64+0xfa/0x790 [ 236.721587][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 236.721587][ C0] RIP: 0033:0x45a759 [ 236.721587][ C0] Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 236.721587][ C0] RSP: 002b:00007fa5c6d91c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 236.721587][ C0] RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 [ 236.888719][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002001d000 [ 236.888719][ C0] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 [ 236.888719][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa5c6d926d4 [ 236.888719][ C0] R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff [ 236.888719][ C0] ------------[ cut here ]------------ [ 236.888719][ C0] WARNING: CPU: 0 PID: 8016 at kernel/locking/mutex.c:1419 mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 236.888719][ C0] ------------[ cut here ]------------ [ 236.888719][ C0] WARNING: CPU: 0 PID: 8016 at kernel/locking/mutex.c:1419 mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] Modules linked in: [ 236.888719][ C0] CPU: 0 PID: 8016 Comm: syz-executor.0 Tainted: G L 5.4.0-syzkaller #0 [ 236.888719][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 236.888719][ C0] RIP: 0010:mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] Code: c9 41 b8 01 00 00 00 31 c9 ba 01 00 00 00 31 f6 e8 fc 92 a1 f9 58 48 8d 65 d8 b8 01 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b e9 0c fe ff ff 48 c7 c7 e0 24 20 8b 48 89 4d d0 e8 00 d7 f8 [ 236.888719][ C0] RSP: 0018:ffff88802d208f48 EFLAGS: 00010006 [ 236.888719][ C0] RAX: 0000000000010104 RBX: 1ffff11005a411f1 RCX: 0000000000000004 [ 236.888719][ C0] RDX: 0000000000010100 RSI: ffffffff816bc9c5 RDI: ffffffff895c25a0 [ 236.888719][ C0] RBP: ffff88802d208f78 R08: 0000000000000002 R09: fffffbfff12b381d [ 236.888719][ C0] R10: fffffbfff12b381c R11: ffffffff8959c0e3 R12: ffffffff8b2024e0 [ 236.888719][ C0] R13: 0000000000000000 R14: ffffffff87b93400 R15: ffffffff895c25a0 [ 236.888719][ C0] FS: 00007fa5c6d92700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000 [ 236.888719][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 236.888719][ C0] CR2: 000000000232fca0 CR3: 000000006c65f000 CR4: 00000000003406f0 [ 236.888719][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 236.888719][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 236.888719][ C0] Call Trace: [ 236.888719][ C0] [ 236.888719][ C0] ? mutex_trylock+0x1f0/0x2f0 [ 236.888719][ C0] __crash_kexec+0x91/0x200 [ 236.888719][ C0] ? kexec_crash_loaded+0x20/0x20 [ 236.888719][ C0] ? trace_hardirqs_off+0x62/0x240 [ 236.888719][ C0] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 236.888719][ C0] ? __printk_safe_flush+0x31e/0x3a0 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 236.888719][ C0] ? find_next_bit+0x107/0x130 [ 236.888719][ C0] ? cpumask_next+0x41/0x50 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.888719][ C0] ? printk_safe_flush+0xf2/0x140 [ 236.888719][ C0] ? mutex_trylock+0x1f0/0x2f0 [ 236.888719][ C0] panic+0x308/0x75c [ 236.888719][ C0] ? add_taint.cold+0x16/0x16 [ 236.888719][ C0] ? printk+0xba/0xed [ 236.888719][ C0] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 236.888719][ C0] ? __warn.cold+0x14/0x3e [ 236.888719][ C0] ? __warn+0xd9/0x1cf [ 236.888719][ C0] ? mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] __warn.cold+0x2f/0x3e [ 236.888719][ C0] ? report_bug.cold+0x63/0xb2 [ 236.888719][ C0] ? mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] report_bug+0x289/0x300 [ 236.888719][ C0] do_error_trap+0x11b/0x200 [ 236.888719][ C0] do_invalid_op+0x37/0x50 [ 236.888719][ C0] ? mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] invalid_op+0x23/0x30 [ 236.888719][ C0] RIP: 0010:mutex_trylock+0x279/0x2f0 [ 236.888719][ C0] Code: c9 41 b8 01 00 00 00 31 c9 ba 01 00 00 00 31 f6 e8 fc 92 a1 f9 58 48 8d 65 d8 b8 01 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b e9 0c fe ff ff 48 c7 c7 e0 24 20 8b 48 89 4d d0 e8 00 d7 f8 [ 236.888719][ C0] RSP: 0018:ffff88802d209380 EFLAGS: 00010006 [ 236.888719][ C0] RAX: 0000000000010103 RBX: 1ffff11005a41278 RCX: 0000000000000004 [ 236.888719][ C0] RDX: 0000000000010100 RSI: ffffffff816bc9c5 RDI: ffffffff895c25a0 [ 236.888719][ C0] RBP: ffff88802d2093b0 R08: 0000000000000001 R09: fffffbfff12b381d [ 236.888719][ C0] R10: fffffbfff12b381c R11: ffffffff8959c0e3 R12: ffffffff8b2024e0 [ 236.888719][ C0] R13: 0000000000000000 R14: ffff88802d209800 R15: ffffffff895c25a0 [ 236.888719][ C0] ? __crash_kexec+0x85/0x200 [ 236.888719][ C0] __crash_kexec+0x91/0x200 [ 236.888719][ C0] ? kexec_crash_loaded+0x20/0x20 [ 236.888719][ C0] ? trace_hardirqs_off+0x62/0x240 [ 236.888719][ C0] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 236.888719][ C0] ? __printk_safe_flush+0x31e/0x3a0 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 236.888719][ C0] ? find_next_bit+0x107/0x130 [ 236.888719][ C0] ? cpumask_next+0x41/0x50 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.888719][ C0] ? printk_safe_flush+0xf2/0x140 [ 236.888719][ C0] panic+0x308/0x75c [ 236.888719][ C0] ? add_taint.cold+0x16/0x16 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.888719][ C0] ? printk_safe_flush+0xf2/0x140 [ 236.888719][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 236.888719][ C0] ? watchdog_timer_fn.cold+0x5/0x33 [ 236.888719][ C0] ? watchdog_timer_fn+0x56e/0x5c0 [ 236.888719][ C0] watchdog_timer_fn.cold+0x16/0x33 [ 236.888719][ C0] __hrtimer_run_queues+0x364/0xe40 [ 236.888719][ C0] ? lockup_detector_update_enable+0xa0/0xa0 [ 236.888719][ C0] ? hrtimer_init+0x330/0x330 [ 236.888719][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 236.888719][ C0] ? ktime_get_update_offsets_now+0x2ce/0x430 [ 236.888719][ C0] hrtimer_interrupt+0x314/0x770 [ 236.888719][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 236.888719][ C0] apic_timer_interrupt+0xf/0x20 [ 236.888719][ C0] RIP: 0010:stack_depot_save+0x0/0x450 [ 236.888719][ C0] Code: 07 00 00 00 00 c3 48 89 0c d5 e0 69 ca 8b b8 01 00 00 00 48 c7 07 00 00 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 65 48 8b 04 25 [ 236.888719][ C0] RSP: 0018:ffff88802d2098f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 236.888719][ C0] RAX: 0000000000000009 RBX: ffff88802904cae0 RCX: ffffffff87e00262 [ 236.888719][ C0] RDX: 0000000000000a20 RSI: 000000000000000a RDI: ffff88802d209900 [ 236.888719][ C0] RBP: ffff88802d209b08 R08: 0000000000000006 R09: ffff8880725b8910 [ 236.888719][ C0] R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: 0000000000000a20 [ 236.888719][ C0] R13: ffff88802904ca00 R14: 0000000000000000 R15: ffff88807ab28000 [ 236.888719][ C0] ? apic_timer_interrupt+0xa/0x20 [ 236.888719][ C0] ? __do_softirq+0x262/0x98c [ 236.888719][ C0] ? save_stack+0x5c/0x90 [ 236.888719][ C0] ? save_stack+0x23/0x90 [ 236.888719][ C0] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 236.888719][ C0] ? kasan_slab_alloc+0xf/0x20 [ 236.888719][ C0] ? kmem_cache_alloc_node+0x138/0x740 [ 236.888719][ C0] ? __alloc_skb+0xd5/0x5e0 [ 236.888719][ C0] ? br_ifinfo_notify+0xa6/0x1d0 [ 236.888719][ C0] ? br_forward_delay_timer_expired+0x11e/0x410 [ 236.888719][ C0] ? call_timer_fn+0x1ac/0x780 [ 236.888719][ C0] ? run_timer_softirq+0x6c3/0x1790 [ 236.888719][ C0] ? __do_softirq+0x262/0x98c [ 236.888719][ C0] ? irq_exit+0x19b/0x1e0 [ 236.888719][ C0] ? smp_apic_timer_interrupt+0x1a3/0x610 [ 236.888719][ C0] ? apic_timer_interrupt+0xf/0x20 [ 236.888719][ C0] ? generic_exec_single+0x33a/0x4c0 [ 236.888719][ C0] ? smp_call_function_single+0x17c/0x480 [ 236.888719][ C0] ? task_function_call+0xe9/0x180 [ 236.888719][ C0] ? perf_install_in_context+0x308/0x5a0 [ 236.888719][ C0] ? __do_sys_perf_event_open+0x1cbc/0x2c70 [ 236.888719][ C0] ? __x64_sys_perf_event_open+0xbe/0x150 [ 236.888719][ C0] ? do_syscall_64+0xfa/0x790 [ 236.888719][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 236.888719][ C0] ? __kasan_check_read+0x11/0x20 [ 236.888719][ C0] ? mark_lock+0xc2/0x1220 [ 236.888719][ C0] ? __kasan_check_write+0x14/0x20 [ 236.888719][ C0] ? sched_clock_local+0xdf/0x150 [ 236.888719][ C0] ? __kasan_check_read+0x11/0x20 [ 236.888719][ C0] ? mark_lock+0xc2/0x1220 [ 236.888719][ C0] ? should_fail+0x1de/0x852 [ 236.888719][ C0] ? mark_held_locks+0xa4/0xf0 [ 236.888719][ C0] ? trace_hardirqs_on_caller+0x6a/0x240 [ 236.888719][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 236.888719][ C0] ? __alloc_skb+0xd5/0x5e0 [ 236.888719][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 236.888719][ C0] ? kasan_unpoison_shadow+0x35/0x50 [ 236.888719][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 236.888719][ C0] kasan_slab_alloc+0xf/0x20 [ 236.888719][ C0] kmem_cache_alloc_node+0x138/0x740 [ 236.888719][ C0] ? lock_downgrade+0x920/0x920 [ 236.888719][ C0] __alloc_skb+0xd5/0x5e0 [ 236.888719][ C0] ? __kmalloc_reserve.isra.0+0xf0/0xf0 [ 236.888719][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 236.888719][ C0] ? br_get_link_af_size_filtered+0x1b1/0xa00 [ 236.888719][ C0] br_ifinfo_notify+0xa6/0x1d0 [ 236.888719][ C0] br_forward_delay_timer_expired+0x11e/0x410 [ 236.888719][ C0] call_timer_fn+0x1ac/0x780 [ 236.888719][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 236.888719][ C0] ? msleep_interruptible+0x150/0x150 [ 236.888719][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 236.888719][ C0] run_timer_softirq+0x6c3/0x1790 [ 236.888719][ C0] ? add_timer+0x930/0x930 [ 236.888719][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 236.888719][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 236.888719][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 236.888719][ C0] __do_softirq+0x262/0x98c [ 236.888719][ C0] ? sched_clock_cpu+0x14e/0x1b0 [ 236.888719][ C0] irq_exit+0x19b/0x1e0 [ 236.888719][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 236.888719][ C0] apic_timer_interrupt+0xf/0x20 [ 236.888719][ C0] [ 236.888719][ C0] RIP: 0010:generic_exec_single+0x33a/0x4c0 [ 236.888719][ C0] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 68 01 00 00 48 83 3d 2e 81 e9 07 00 0f 84 e0 00 00 00 e8 eb 2a 0b 00 48 89 df 57 9d <0f> 1f 44 00 00 45 31 ed e9 39 fe ff ff e8 d4 2a 0b 00 0f 0b e9 23 [ 236.888719][ C0] RSP: 0018:ffff8880725c7a80 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 236.888719][ C0] RAX: 0000000000040000 RBX: 0000000000000216 RCX: ffffc9000409c000 [ 236.888719][ C0] RDX: 000000000000131a RSI: ffffffff8169b335 RDI: 0000000000000216 [ 237.888785][ C0] RBP: ffff8880725c7ab0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 [ 237.888785][ C0] R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: 0000000000000200 [ 237.888785][ C0] R13: ffff8880725c7b00 R14: ffff8880725c7bd0 R15: ffffffff818bd170 [ 237.888785][ C0] ? perf_duration_warn+0x40/0x40 [ 237.888785][ C0] ? generic_exec_single+0x335/0x4c0 [ 237.888785][ C0] ? __perf_event_enable+0x930/0x930 [ 237.888785][ C0] smp_call_function_single+0x17c/0x480 [ 237.888785][ C0] ? perf_duration_warn+0x40/0x40 [ 237.888785][ C0] ? generic_exec_single+0x4c0/0x4c0 [ 237.888785][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 237.888785][ C0] ? __perf_event_enable+0x930/0x930 [ 237.888785][ C0] task_function_call+0xe9/0x180 [ 237.888785][ C0] ? perf_event_addr_filters_exec+0x310/0x310 [ 237.888785][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 237.888785][ C0] ? __perf_event_enable+0x930/0x930 [ 237.888785][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 237.888785][ C0] ? exclusive_event_installable+0x257/0x320 [ 237.888785][ C0] perf_install_in_context+0x308/0x5a0 [ 237.888785][ C0] ? list_add_event+0xed0/0xed0 [ 237.888785][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 237.888785][ C0] ? __perf_event_header_size.isra.0+0x166/0x1c0 [ 237.888785][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 237.888785][ C0] __do_sys_perf_event_open+0x1cbc/0x2c70 [ 237.888785][ C0] ? perf_event_set_output+0x4e0/0x4e0 [ 237.888785][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 237.888785][ C0] ? put_timespec64+0xda/0x140 [ 237.888785][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 237.888785][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 237.888785][ C0] ? do_syscall_64+0x26/0x790 [ 237.888785][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 237.888785][ C0] ? do_syscall_64+0x26/0x790 [ 237.888785][ C0] __x64_sys_perf_event_open+0xbe/0x150 [ 237.888785][ C0] do_syscall_64+0xfa/0x790 [ 237.888785][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 237.888785][ C0] RIP: 0033:0x45a759 [ 237.888785][ C0] Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 237.888785][ C0] RSP: 002b:00007fa5c6d91c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 237.888785][ C0] RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 [ 237.888785][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002001d000 [ 237.888785][ C0] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 [ 237.888785][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa5c6d926d4 [ 237.888785][ C0] R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff [ 237.888785][ C0] irq event stamp: 5217563 [ 237.888785][ C0] hardirqs last enabled at (5217562): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 237.888785][ C0] hardirqs last disabled at (5217563): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 237.888785][ C0] softirqs last enabled at (0): [] copy_process+0x1822/0x69e0 [ 237.888785][ C0] softirqs last disabled at (379): [] irq_exit+0x19b/0x1e0 [ 237.888785][ C0] ---[ end trace 8afa239159a13379 ]--- [ 237.888785][ C0] ------------[ cut here ]------------ [ 237.888785][ C0] WARNING: CPU: 0 PID: 8016 at kernel/locking/mutex.c:737 mutex_unlock+0x1d/0x30 [ 237.888785][ C0] Modules linked in: [ 237.888785][ C0] CPU: 0 PID: 8016 Comm: syz-executor.0 Tainted: G W L 5.4.0-syzkaller #0 [ 237.888785][ C0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 237.888785][ C0] RIP: 0010:mutex_unlock+0x1d/0x30 [ 237.888785][ C0] Code: 4c 89 ff e8 55 e2 f8 f9 e9 8c fb ff ff 55 65 8b 05 10 f5 48 78 a9 00 ff 1f 00 48 89 e5 75 0b 48 8b 75 08 e8 45 f9 ff ff 5d c3 <0f> 0b 48 8b 75 08 e8 38 f9 ff ff 5d c3 66 0f 1f 44 00 00 48 b8 00 [ 237.888785][ C0] RSP: 0018:ffff88802d208f78 EFLAGS: 00010006 [ 237.888785][ C0] RAX: 0000000000010104 RBX: 1ffff11005a411f1 RCX: ffffffff816bc9dd [ 237.888785][ C0] RDX: 0000000000010100 RSI: ffffffff816bca3f RDI: ffffffff895c25a0 [ 237.888785][ C0] RBP: ffff88802d208f78 R08: ffff8880725b8080 R09: fffffbfff15d29b9 [ 237.888785][ C0] R10: ffff8880725b89e0 R11: ffff8880725b8080 R12: 0000000000000001 [ 237.888785][ C0] R13: 0000000000000000 R14: ffffffff87b93400 R15: 000000000000058b [ 237.888785][ C0] FS: 00007fa5c6d92700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000 [ 237.888785][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 237.888785][ C0] CR2: 000000000232fca0 CR3: 000000006c65f000 CR4: 00000000003406f0 [ 237.888785][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 237.888785][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 237.888785][ C0] Call Trace: [ 237.888785][ C0] [ 237.888785][ C0] __crash_kexec+0x10b/0x200 [ 237.888785][ C0] ? kexec_crash_loaded+0x20/0x20 [ 237.888785][ C0] ? trace_hardirqs_off+0x62/0x240 [ 237.888785][ C0] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 237.888785][ C0] ? __printk_safe_flush+0x31e/0x3a0 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 237.888785][ C0] ? find_next_bit+0x107/0x130 [ 237.888785][ C0] ? cpumask_next+0x41/0x50 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 237.888785][ C0] ? printk_safe_flush+0xf2/0x140 [ 237.888785][ C0] ? mutex_trylock+0x1f0/0x2f0 [ 237.888785][ C0] panic+0x308/0x75c [ 237.888785][ C0] ? add_taint.cold+0x16/0x16 [ 237.888785][ C0] ? printk+0xba/0xed [ 237.888785][ C0] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 237.888785][ C0] ? __warn.cold+0x14/0x3e [ 237.888785][ C0] ? __warn+0xd9/0x1cf [ 237.888785][ C0] ? mutex_trylock+0x279/0x2f0 [ 237.888785][ C0] __warn.cold+0x2f/0x3e [ 237.888785][ C0] ? report_bug.cold+0x63/0xb2 [ 237.888785][ C0] ? mutex_trylock+0x279/0x2f0 [ 237.888785][ C0] report_bug+0x289/0x300 [ 237.888785][ C0] do_error_trap+0x11b/0x200 [ 237.888785][ C0] do_invalid_op+0x37/0x50 [ 237.888785][ C0] ? mutex_trylock+0x279/0x2f0 [ 237.888785][ C0] invalid_op+0x23/0x30 [ 237.888785][ C0] RIP: 0010:mutex_trylock+0x279/0x2f0 [ 237.888785][ C0] Code: c9 41 b8 01 00 00 00 31 c9 ba 01 00 00 00 31 f6 e8 fc 92 a1 f9 58 48 8d 65 d8 b8 01 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b e9 0c fe ff ff 48 c7 c7 e0 24 20 8b 48 89 4d d0 e8 00 d7 f8 [ 237.888785][ C0] RSP: 0018:ffff88802d209380 EFLAGS: 00010006 [ 237.888785][ C0] RAX: 0000000000010103 RBX: 1ffff11005a41278 RCX: 0000000000000004 [ 237.888785][ C0] RDX: 0000000000010100 RSI: ffffffff816bc9c5 RDI: ffffffff895c25a0 [ 237.888785][ C0] RBP: ffff88802d2093b0 R08: 0000000000000001 R09: fffffbfff12b381d [ 237.888785][ C0] R10: fffffbfff12b381c R11: ffffffff8959c0e3 R12: ffffffff8b2024e0 [ 237.888785][ C0] R13: 0000000000000000 R14: ffff88802d209800 R15: ffffffff895c25a0 [ 237.888785][ C0] ? __crash_kexec+0x85/0x200 [ 237.888785][ C0] __crash_kexec+0x91/0x200 [ 237.888785][ C0] ? kexec_crash_loaded+0x20/0x20 [ 237.888785][ C0] ? trace_hardirqs_off+0x62/0x240 [ 237.888785][ C0] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 237.888785][ C0] ? __printk_safe_flush+0x31e/0x3a0 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 237.888785][ C0] ? find_next_bit+0x107/0x130 [ 237.888785][ C0] ? cpumask_next+0x41/0x50 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 237.888785][ C0] ? printk_safe_flush+0xf2/0x140 [ 237.888785][ C0] panic+0x308/0x75c [ 237.888785][ C0] ? add_taint.cold+0x16/0x16 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 237.888785][ C0] ? printk_safe_flush+0xf2/0x140 [ 237.888785][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 237.888785][ C0] ? watchdog_timer_fn.cold+0x5/0x33 [ 237.888785][ C0] ? watchdog_timer_fn+0x56e/0x5c0 [ 237.888785][ C0] watchdog_timer_fn.cold+0x16/0x33 [ 237.888785][ C0] __hrtimer_run_queues+0x364/0xe40 [ 237.888785][ C0] ? lockup_detector_update_enable+0xa0/0xa0 [ 237.888785][ C0] ? hrtimer_init+0x330/0x330 [ 237.888785][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 237.888785][ C0] ? ktime_get_update_offsets_now+0x2ce/0x430 [ 237.888785][ C0] hrtimer_interrupt+0x314/0x770 [ 237.888785][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 237.888785][ C0] apic_timer_interrupt+0xf/0x20 [ 237.888785][ C0] RIP: 0010:stack_depot_save+0x0/0x450 [ 237.888785][ C0] Code: 07 00 00 00 00 c3 48 89 0c d5 e0 69 ca 8b b8 01 00 00 00 48 c7 07 00 00 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 20 65 48 8b 04 25 [ 237.888785][ C0] RSP: 0018:ffff88802d2098f8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 237.888785][ C0] RAX: 0000000000000009 RBX: ffff88802904cae0 RCX: ffffffff87e00262 [ 237.888785][ C0] RDX: 0000000000000a20 RSI: 000000000000000a RDI: ffff88802d209900 [ 237.888785][ C0] RBP: ffff88802d209b08 R08: 0000000000000006 R09: ffff8880725b8910 [ 237.888785][ C0] R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: 0000000000000a20 [ 237.888785][ C0] R13: ffff88802904ca00 R14: 0000000000000000 R15: ffff88807ab28000 [ 237.888785][ C0] ? apic_timer_interrupt+0xa/0x20 [ 237.888785][ C0] ? __do_softirq+0x262/0x98c [ 237.888785][ C0] ? save_stack+0x5c/0x90 [ 237.888785][ C0] ? save_stack+0x23/0x90 [ 237.888785][ C0] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 237.888785][ C0] ? kasan_slab_alloc+0xf/0x20 [ 237.888785][ C0] ? kmem_cache_alloc_node+0x138/0x740 [ 237.888785][ C0] ? __alloc_skb+0xd5/0x5e0 [ 237.888785][ C0] ? br_ifinfo_notify+0xa6/0x1d0 [ 237.888785][ C0] ? br_forward_delay_timer_expired+0x11e/0x410 [ 237.888785][ C0] ? call_timer_fn+0x1ac/0x780 [ 237.888785][ C0] ? run_timer_softirq+0x6c3/0x1790 [ 237.888785][ C0] ? __do_softirq+0x262/0x98c [ 237.888785][ C0] ? irq_exit+0x19b/0x1e0 [ 237.888785][ C0] ? smp_apic_timer_interrupt+0x1a3/0x610 [ 237.888785][ C0] ? apic_timer_interrupt+0xf/0x20 [ 237.888785][ C0] ? generic_exec_single+0x33a/0x4c0 [ 237.888785][ C0] ? smp_call_function_single+0x17c/0x480 [ 237.888785][ C0] ? task_function_call+0xe9/0x180 [ 238.888998][ C0] ? perf_install_in_context+0x308/0x5a0 [ 238.888998][ C0] ? __do_sys_perf_event_open+0x1cbc/0x2c70 [ 238.888998][ C0] ? __x64_sys_perf_event_open+0xbe/0x150 [ 238.888998][ C0] ? do_syscall_64+0xfa/0x790 [ 238.888998][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 238.888998][ C0] ? __kasan_check_read+0x11/0x20 [ 238.888998][ C0] ? mark_lock+0xc2/0x1220 [ 238.888998][ C0] ? __kasan_check_write+0x14/0x20 [ 238.888998][ C0] ? sched_clock_local+0xdf/0x150 [ 238.888998][ C0] ? __kasan_check_read+0x11/0x20 [ 238.888998][ C0] ? mark_lock+0xc2/0x1220 [ 238.888998][ C0] ? should_fail+0x1de/0x852 [ 238.888998][ C0] ? mark_held_locks+0xa4/0xf0 [ 238.888998][ C0] ? trace_hardirqs_on_caller+0x6a/0x240 [ 238.888998][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 238.888998][ C0] ? __alloc_skb+0xd5/0x5e0 [ 238.888998][ C0] ? kmem_cache_alloc_node+0x22e/0x740 [ 238.888998][ C0] ? kasan_unpoison_shadow+0x35/0x50 [ 238.888998][ C0] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 238.888998][ C0] kasan_slab_alloc+0xf/0x20 [ 238.888998][ C0] kmem_cache_alloc_node+0x138/0x740 [ 238.888998][ C0] ? lock_downgrade+0x920/0x920 [ 238.888998][ C0] __alloc_skb+0xd5/0x5e0 [ 238.888998][ C0] ? __kmalloc_reserve.isra.0+0xf0/0xf0 [ 238.888998][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 238.888998][ C0] ? br_get_link_af_size_filtered+0x1b1/0xa00 [ 238.888998][ C0] br_ifinfo_notify+0xa6/0x1d0 [ 238.888998][ C0] br_forward_delay_timer_expired+0x11e/0x410 [ 238.888998][ C0] call_timer_fn+0x1ac/0x780 [ 238.888998][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 238.888998][ C0] ? msleep_interruptible+0x150/0x150 [ 238.888998][ C0] ? br_hold_timer_expired+0xe0/0xe0 [ 238.888998][ C0] run_timer_softirq+0x6c3/0x1790 [ 238.888998][ C0] ? add_timer+0x930/0x930 [ 238.888998][ C0] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 238.888998][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 238.888998][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 238.888998][ C0] __do_softirq+0x262/0x98c [ 238.888998][ C0] ? sched_clock_cpu+0x14e/0x1b0 [ 238.888998][ C0] irq_exit+0x19b/0x1e0 [ 238.888998][ C0] smp_apic_timer_interrupt+0x1a3/0x610 [ 238.888998][ C0] apic_timer_interrupt+0xf/0x20 [ 238.888998][ C0] [ 238.888998][ C0] RIP: 0010:generic_exec_single+0x33a/0x4c0 [ 238.888998][ C0] Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 68 01 00 00 48 83 3d 2e 81 e9 07 00 0f 84 e0 00 00 00 e8 eb 2a 0b 00 48 89 df 57 9d <0f> 1f 44 00 00 45 31 ed e9 39 fe ff ff e8 d4 2a 0b 00 0f 0b e9 23 [ 239.131845][ C0] RSP: 0018:ffff8880725c7a80 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 [ 239.131845][ C0] RAX: 0000000000040000 RBX: 0000000000000216 RCX: ffffc9000409c000 [ 239.131845][ C0] RDX: 000000000000131a RSI: ffffffff8169b335 RDI: 0000000000000216 [ 239.131845][ C0] RBP: ffff8880725c7ab0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9 [ 239.131845][ C0] R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: 0000000000000200 [ 239.131845][ C0] R13: ffff8880725c7b00 R14: ffff8880725c7bd0 R15: ffffffff818bd170 [ 239.131845][ C0] ? perf_duration_warn+0x40/0x40 [ 239.131845][ C0] ? generic_exec_single+0x335/0x4c0 [ 239.131845][ C0] ? __perf_event_enable+0x930/0x930 [ 239.131845][ C0] smp_call_function_single+0x17c/0x480 [ 239.131845][ C0] ? perf_duration_warn+0x40/0x40 [ 239.131845][ C0] ? generic_exec_single+0x4c0/0x4c0 [ 239.131845][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 239.131845][ C0] ? __perf_event_enable+0x930/0x930 [ 239.234651][ C0] task_function_call+0xe9/0x180 [ 239.234651][ C0] ? perf_event_addr_filters_exec+0x310/0x310 [ 239.234651][ C0] ? __do_sys_perf_event_open+0x174c/0x2c70 [ 239.234651][ C0] ? __perf_event_enable+0x930/0x930 [ 239.234651][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 239.234651][ C0] ? exclusive_event_installable+0x257/0x320 [ 239.234651][ C0] perf_install_in_context+0x308/0x5a0 [ 239.234651][ C0] ? list_add_event+0xed0/0xed0 [ 239.234651][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 239.234651][ C0] ? __perf_event_header_size.isra.0+0x166/0x1c0 [ 239.234651][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 239.234651][ C0] __do_sys_perf_event_open+0x1cbc/0x2c70 [ 239.234651][ C0] ? perf_event_set_output+0x4e0/0x4e0 [ 239.234651][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 239.234651][ C0] ? put_timespec64+0xda/0x140 [ 239.234651][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 239.234651][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 239.234651][ C0] ? do_syscall_64+0x26/0x790 [ 239.234651][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 239.234651][ C0] ? do_syscall_64+0x26/0x790 [ 239.234651][ C0] __x64_sys_perf_event_open+0xbe/0x150 [ 239.234651][ C0] do_syscall_64+0xfa/0x790 [ 239.234651][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 239.234651][ C0] RIP: 0033:0x45a759 [ 239.234651][ C0] Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 239.234651][ C0] RSP: 002b:00007fa5c6d91c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 239.234651][ C0] RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759 [ 239.234651][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002001d000 [ 239.234651][ C0] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 [ 239.234651][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa5c6d926d4 [ 239.234651][ C0] R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff [ 239.234651][ C0] irq event stamp: 5217563 [ 239.234651][ C0] hardirqs last enabled at (5217562): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 239.234651][ C0] hardirqs last disabled at (5217563): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 239.234651][ C0] softirqs last enabled at (0): [] copy_process+0x1822/0x69e0 [ 239.234651][ C0] softirqs last disabled at (379): [] irq_exit+0x19b/0x1e0 [ 239.234651][ C0] ---[ end trace 8afa239159a1337a ]--- [ 239.234651][ C0] Kernel Offset: disabled [ 239.234651][ C0] Rebooting in 86400 seconds..