blk_print_req_error: 927 callbacks suppressed I/O error, dev loop6, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.0:16660] Modules linked in: irq event stamp: 7683815 hardirqs last enabled at (7683814): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7683815): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7611914): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7611917): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 16660 Comm: syz-executor.0 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:mac80211_hwsim_beacon_tx+0x18a/0xb10 Code: d2 49 fe 8b 04 24 85 c0 74 2f e8 a1 d6 49 fe 41 83 e5 fd bf 01 00 00 00 44 89 ee e8 c0 d2 49 fe 41 83 fd 01 74 13 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 77 d6 49 fe e8 72 d6 49 fe 48 89 RSP: 0018:ffff88806cf09d40 EFLAGS: 00000292 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82ffa145 RDX: ffff88800a170000 RSI: 0000000000000100 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804677a2e8 R13: ffff888041aee358 R14: ffff88804677a340 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e1bc3e0a40 CR3: 0000000016188000 CR4: 0000000000350ee0 Call Trace: __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __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:free_swap_cache+0x33/0x3a0 Code: fd 53 e8 50 20 d2 ff 48 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 0d 03 00 00 4c 8b 65 08 <31> ff 4c 89 e3 83 e3 01 48 89 de e8 7d 1c d2 ff 48 85 db 0f 85 05 RSP: 0018:ffff88800eeaf660 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8880407b6758 RCX: 0000000000000000 RDX: 1ffffd40001b6489 RSI: ffffffff81775230 RDI: ffffea0000db2448 RBP: ffffea0000db2440 R08: 0000000000000004 R09: 00000000000001fe R10: 00000000000000e8 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880407b6010 R15: 00000000000001fe free_pages_and_swap_cache+0x60/0xa0 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x164b/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f6554a77b19 Code: Unable to access opcode bytes at 0x7f6554a77aef. RSP: 002b:00007f6551fcc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000004 RBX: 00007f6554b8b020 RCX: 00007f6554a77b19 RDX: 0000000000004042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f6554ad1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff6a0a62f R14: 00007f6551fcc300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16615 Comm: syz-executor.1 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 Code: be a8 01 00 00 e8 a0 ff ff ff 31 c0 e9 dd 11 fb 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 fd 16 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff88806ce097d0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81588888 RDX: ffff88801f8e3580 RSI: 0000000000000100 RDI: 0000000000000001 RBP: ffff88806ce09bd8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888037dbcc60 R15: dffffc0000000000 FS: 00007f9802f66700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1203c57010 CR3: 000000000943a000 CR4: 0000000000350ef0 Call Trace: perf_exclude_event+0xf3/0x1a0 perf_swevent_hrtimer+0x299/0x3d0 __hrtimer_run_queues+0x17f/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x20 Code: d6 0f b7 f7 bf 03 00 00 00 e9 58 fe ff ff 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 89 f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f RSP: 0018:ffff88806ce09c88 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100 RDX: ffff88801f8e3580 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000080 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803dcf2500 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888045d80de0 ieee80211_rx_list+0x7c6/0x2f10 ieee80211_rx_napi+0xde/0x3c0 ieee80211_tasklet_handler+0xd8/0x140 tasklet_action_common.constprop.0+0x208/0x2f0 __do_softirq+0x1c7/0x913 __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:kmem_cache_alloc+0x103/0x300 Code: 84 7e 48 8b 50 08 48 83 78 10 00 4c 8b 00 0f 84 df 01 00 00 4d 85 c0 0f 84 d6 01 00 00 41 8b 44 24 28 49 8b 3c 24 49 8b 1c 00 <40> f6 c7 0f 0f 85 e7 01 00 00 48 8d 4a 40 4c 89 c0 65 48 0f c7 0f RSP: 0018:ffff888045df75f8 EFLAGS: 00000282 RAX: 0000000000000078 RBX: ffff88800f9b7390 RCX: 0000000000000000 RDX: 000000002ad27a40 RSI: 00000000000000f0 RDI: 000000000003d940 RBP: 0000000000000000 R08: ffff88800f9b7980 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800844f780 R13: ffffffff818112dd R14: 0000000000092cc0 R15: 00000000000000f0 __create_object+0x3d/0xc40 __kmem_cache_alloc_node+0x1ed/0x2f0 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 inet6_netconf_notify_devconf+0x88/0x1b0 __addrconf_sysctl_register+0x269/0x3e0 addrconf_init_net+0x516/0x8f0 ops_init+0xbb/0x6c0 setup_net+0x40c/0x9d0 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2a5e/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f98059f0b19 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:00007f9802f66188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9805b03f60 RCX: 00007f98059f0b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f9805a4af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfd8385bf R14: 00007f9802f66300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: d2 49 fe rorb %cl,-0x2(%rcx) 3: 8b 04 24 mov (%rsp),%eax 6: 85 c0 test %eax,%eax 8: 74 2f je 0x39 a: e8 a1 d6 49 fe callq 0xfe49d6b0 f: 41 83 e5 fd and $0xfffffffd,%r13d 13: bf 01 00 00 00 mov $0x1,%edi 18: 44 89 ee mov %r13d,%esi 1b: e8 c0 d2 49 fe callq 0xfe49d2e0 20: 41 83 fd 01 cmp $0x1,%r13d 24: 74 13 je 0x39 26: 48 83 c4 18 add $0x18,%rsp * 2a: 5b pop %rbx <-- trapping instruction 2b: 5d pop %rbp 2c: 41 5c pop %r12 2e: 41 5d pop %r13 30: 41 5e pop %r14 32: 41 5f pop %r15 34: e9 77 d6 49 fe jmpq 0xfe49d6b0 39: e8 72 d6 49 fe callq 0xfe49d6b0 3e: 48 rex.W 3f: 89 .byte 0x89