watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz-executor.5:18985] Modules linked in: irq event stamp: 13681949 hardirqs last enabled at (13681948): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 hardirqs last disabled at (13681949): [] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (13656416): [] __irq_exit_rcu+0xec/0x170 kernel/softirq.c:636 softirqs last disabled at (13656419): [] __irq_exit_rcu+0xec/0x170 kernel/softirq.c:636 CPU: 1 PID: 18985 Comm: syz-executor.5 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_switch+0x24/0x100 kernel/kcov.c:306 Code: 89 11 c3 0f 1f 00 41 57 41 56 41 54 53 48 8b 4e 08 48 83 c1 f8 48 89 c8 48 c1 c0 3d 48 83 f8 07 0f 87 d3 00 00 00 48 c1 e9 03 8b 00 00 00 0f a3 ca 0f 83 c1 00 00 00 4c 8b 16 4d 85 d2 0f 84 RSP: 0018:ffffc90000dc0918 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000003 RDX: 0000000000000101 RSI: ffffffff8d4be0a0 RDI: 0000000000000000 RBP: ffffc90000dc0ae8 R08: ffffffff85b56729 R09: ffffc90000dc0a80 R10: fffff520001b8152 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff920001b8151 R14: ffff88816b4fb578 R15: ffff888172b732e0 FS: 00007f58247a0700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f582479eff8 CR3: 0000000177c8d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hwsim_ps_rx_ok drivers/net/wireless/mac80211_hwsim.c:1142 [inline] mac80211_hwsim_tx_frame_no_nl+0x82b/0x1770 drivers/net/wireless/mac80211_hwsim.c:1528 mac80211_hwsim_tx_frame+0x1cb/0x220 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x46c/0x890 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x23e/0x480 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x9b/0x120 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x9f/0x180 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x1b7/0x5d0 kernel/time/hrtimer.c:1766 __do_softirq+0x392/0x7a3 kernel/softirq.c:558 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:put_cpu_partial+0x147/0x180 mm/slub.c:2602 Code: 00 00 48 3b 44 24 08 75 4d 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 96 68 32 08 41 f7 c5 00 02 00 00 74 c3 fb 4d 85 ff <75> c2 eb cb 48 c7 c7 80 60 bf 8c 48 89 de e8 76 ed 69 02 e9 fd fe RSP: 0018:ffffc90016567910 EFLAGS: 00000286 RAX: 35214f032788d600 RBX: 0000000000000001 RCX: ffffffff90ba4903 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff8880b9b3d280 R08: ffffffff818b1050 R09: fffffbfff1bfcade R10: fffffbfff1bfcade R11: 0000000000000000 R12: ffff888011442140 R13: 0000000000000282 R14: ffffea000612da00 R15: ffffea0005f5d200 do_slab_free mm/slub.c:3501 [inline] ___cache_free+0xe6/0x120 mm/slub.c:3520 qlist_free_all mm/kasan/quarantine.c:165 [inline] kasan_quarantine_reduce+0x151/0x1c0 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x2f/0xf0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc_trace+0x20b/0x330 mm/slub.c:3259 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:724 [inline] smack_sk_alloc_security+0xe6/0x290 security/smack/smack_lsm.c:2243 security_sk_alloc+0x55/0xb0 security/security.c:2263 sk_prot_alloc+0x10e/0x230 net/core/sock.c:1923 sk_alloc+0x35/0x300 net/core/sock.c:1973 unix_create1+0xb4/0x5e0 unix_create+0x142/0x1f0 net/unix/af_unix.c:934 __sock_create+0x580/0x8d0 net/socket.c:1464 sock_create net/socket.c:1515 [inline] __sys_socket+0x133/0x380 net/socket.c:1557 __do_sys_socket net/socket.c:1566 [inline] __se_sys_socket net/socket.c:1564 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1564 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f582722c167 Code: f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f582479ef68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f582479f0d0 RCX: 00007f582722c167 RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 RBP: 0000000020000140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 00007f582479efd0 R13: 0000000000000004 R14: 00007f582479f0f0 R15: 0000000020000040 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 20398 Comm: kworker/u4:9 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_dat_purge RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x1b0/0x1f0 arch/x86/kernel/kvm.c:997 Code: 4c 89 e0 48 c1 e8 03 42 8a 04 28 84 c0 75 41 45 8a 34 24 e8 b2 f4 50 00 44 3a 74 24 1c 75 10 eb 07 0f 00 2d 22 42 31 09 fb f4 cc fe ff ff fb e9 c6 fe ff ff 44 89 e1 80 e1 07 38 c1 0f 8c 57 RSP: 0018:ffffc90000007720 EFLAGS: 00000246 RAX: 17357930e8399500 RBX: 1ffff92000000ee8 RCX: ffffffff81665d91 RDX: dffffc0000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffffc900000077f0 R08: dffffc0000000000 R09: fffffbfff1ff19e9 R10: fffffbfff1ff19e9 R11: 0000000000000000 R12: ffffffff8d4bd820 R13: dffffc0000000000 R14: 1ffff92000000e03 R15: ffffc90000007760 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c033d7b010 CR3: 0000000071ea6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x76c/0xcb0 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x4c9/0x8e0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:349 [inline] mac80211_hwsim_tx_frame_no_nl+0x641/0x1770 drivers/net/wireless/mac80211_hwsim.c:1516 mac80211_hwsim_tx_frame+0x1cb/0x220 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x46c/0x890 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x23e/0x480 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x9b/0x120 net/mac80211/util.c:829 mac80211_hwsim_beacon+0x9f/0x180 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749 hrtimer_run_softirq+0x1b7/0x5d0 kernel/time/hrtimer.c:1766 __do_softirq+0x392/0x7a3 kernel/softirq.c:558 do_softirq+0x161/0x240 kernel/softirq.c:459 __local_bh_enable_ip+0x1b0/0x1f0 kernel/softirq.c:383 spin_unlock_bh include/linux/spinlock.h:394 [inline] __batadv_dat_purge net/batman-adv/distributed-arp-table.c:187 [inline] batadv_dat_purge+0x33f/0x500 net/batman-adv/distributed-arp-table.c:206 process_one_work+0x853/0x1140 kernel/workqueue.c:2298 worker_thread+0xac1/0x1320 kernel/workqueue.c:2445 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 ---------------- Code disassembly (best guess): 0: 89 11 mov %edx,(%rcx) 2: c3 retq 3: 0f 1f 00 nopl (%rax) 6: 41 57 push %r15 8: 41 56 push %r14 a: 41 54 push %r12 c: 53 push %rbx d: 48 8b 4e 08 mov 0x8(%rsi),%rcx 11: 48 83 c1 f8 add $0xfffffffffffffff8,%rcx 15: 48 89 c8 mov %rcx,%rax 18: 48 c1 c0 3d rol $0x3d,%rax 1c: 48 83 f8 07 cmp $0x7,%rax 20: 0f 87 d3 00 00 00 ja 0xf9 26: 48 c1 e9 03 shr $0x3,%rcx * 2a: ba 8b 00 00 00 mov $0x8b,%edx <-- trapping instruction 2f: 0f a3 ca bt %ecx,%edx 32: 0f 83 c1 00 00 00 jae 0xf9 38: 4c 8b 16 mov (%rsi),%r10 3b: 4d 85 d2 test %r10,%r10 3e: 0f .byte 0xf 3f: 84 .byte 0x84