device lo entered promiscuous mode watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.3:5818] Modules linked in: irq event stamp: 5031725 hardirqs last enabled at (5031724): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5031725): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5005174): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5005177): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 5818 Comm: syz-executor.3 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x20 Code: 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 f8 fd ff ff 0f 1f 84 00 00 00 RSP: 0018:ffff88806cf09b78 EFLAGS: 00000246 RAX: 1ffff11008d88e36 RBX: ffff888046c433a0 RCX: ffffffff82fc90f2 RDX: ffff8880484d5040 RSI: 0000000000000001 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888045814640 R13: ffff888046d533a0 R14: ffff888046d53638 R15: 0000000000000001 FS: 00007f9233184700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005613a9fa6c10 CR3: 000000000e110000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_tx_frame_no_nl.isra.0+0x8f2/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kasan_quarantine_put+0x91/0x1f0 Code: c7 45 00 00 00 00 00 48 03 58 10 48 89 58 10 48 81 fb 00 00 10 00 77 63 41 bc 01 00 00 00 4d 85 ed 74 43 e8 d1 f3 d2 ff fb 5b <44> 89 e0 5d 41 5c 41 5d 41 5e e9 04 dc c3 02 e8 fb f4 d2 ff 48 c7 RSP: 0018:ffff88804916f2c0 EFLAGS: 00000202 RAX: 000000000044f56b RBX: ffff888046f9e400 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888046f9e400 R08: 0000000000000001 R09: ffffffff876328cf R10: fffffbfff0ec6519 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000200 R14: 0000000000000002 R15: ffff888008441c80 __kmem_cache_free+0xcf/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 netlink_broadcast+0x359/0xd90 nlmsg_notify+0x93/0x290 inet6_netconf_notify_devconf+0xe5/0x1b0 __addrconf_sysctl_register+0x269/0x3e0 addrconf_sysctl_register+0x13d/0x1e0 ipv6_add_dev+0xa0f/0x12c0 addrconf_notify+0xbf7/0x2480 raw_notifier_call_chain+0xb7/0x110 call_netdevice_notifiers_info+0xb5/0x130 register_netdevice+0xf47/0x1530 register_netdev+0x31/0x60 loopback_net_init+0x7a/0x170 ops_init+0xbb/0x680 setup_net+0x40c/0x9d0 copy_net_ns+0x31c/0x760 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x3b7/0x4a0 copy_process+0x29e3/0x7160 kernel_clone+0xeb/0x8a0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f9235c0eb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9233184188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9235d21f60 RCX: 00007f9235c0eb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f9235c68f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffee2a10edf R14: 00007f9233184300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: e9 2a fe ff ff jmpq 0xfffffe31 7: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) e: 00 00 00 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: f3 0f 1e fa endbr64 25: 48 8b 0c 24 mov (%rsp),%rcx * 29: 48 89 f2 mov %rsi,%rdx <-- trapping instruction 2c: 48 89 fe mov %rdi,%rsi 2f: bf 07 00 00 00 mov $0x7,%edi 34: e9 f8 fd ff ff jmpq 0xfffffe31 39: 0f .byte 0xf 3a: 1f (bad) 3b: 84 00 test %al,(%rax)