RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002 loop1: detected capacity change from 0 to 264192 watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:10041] Modules linked in: irq event stamp: 4874149 hardirqs last enabled at (4874148): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4874149): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4787716): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4787719): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 10041 Comm: syz-executor.6 Not tainted 6.4.0-rc6-next-20230616 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:core_kernel_text+0x82/0xa0 Code: b9 b3 04 01 76 0b 44 89 e0 5b 41 5c e9 f7 32 33 03 48 81 fb 00 30 60 86 72 ec 48 81 fb f1 55 74 86 73 e3 41 bc 01 00 00 00 5b <44> 89 e0 41 5c e9 d4 32 33 03 48 c7 c7 c4 80 d3 85 e8 78 2b 61 00 RSP: 0018:ffff88806ce097f0 EFLAGS: 00000283 RAX: dffffc0000000000 RBX: ffffffff813c092c RCX: 0000000000000001 RDX: 1ffff1100d9c1313 RSI: ffff88806ce09f10 RDI: ffffffff813c092c RBP: ffffffff813c092c R08: 0000000000000001 R09: ffff88806ce09880 R10: 0000000000038001 R11: 00000000000112ba R12: 0000000000000001 R13: 0000000000000000 R14: ffff888019818000 R15: ffff88800eb865f0 FS: 00007fa9261ce700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bcf555d770 CR3: 000000003d936000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: kernel_text_address+0x11/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x238/0x3b0 __alloc_skb+0x28c/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3f6/0xfc0 ieee80211_beacon_get_tim+0xa1/0x550 mac80211_hwsim_beacon_tx+0x402/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:discard_slab+0x1c/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 16 0f b7 46 2a 48 c1 ea 3a 66 25 ff 7f 48 8b 94 d7 d0 00 00 00 f0 48 ff 4a 58 <0f> b7 c0 f0 48 29 42 60 e9 d7 fe ff ff 0f 1f 80 00 00 00 00 90 90 RSP: 0018:ffff888044bd74b8 EFLAGS: 00000206 RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffffffff812e0423 RDX: ffff8880087b1b40 RSI: ffffea0000e5a600 RDI: ffff8880087b63c0 RBP: ffff888044bd7550 R08: 0000000000000000 R09: ffffed100d9c8028 R10: ffff88806ce40143 R11: 0000000000000001 R12: ffff8880087b63c0 R13: ffff8880087b1b40 R14: ffffea0001169800 R15: 0000000080070000 __unfreeze_partials+0x1a7/0x1d0 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_kmalloc+0x6f/0x90 __ipv6_dev_mc_inc+0x2bb/0xc40 ipv6_add_dev+0xa8d/0x1350 addrconf_notify+0x635/0x19a0 notifier_call_chain+0xbb/0x310 call_netdevice_notifiers_info+0xb9/0x130 register_netdevice+0xf47/0x1530 register_netdev+0x31/0x60 loopback_net_init+0x7a/0x180 ops_init+0xbb/0x6b0 setup_net+0x3d9/0x990 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2b78/0x7320 kernel_clone+0xeb/0x7d0 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fa928c58b19 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:00007fa9261ce188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fa928d6bf60 RCX: 00007fa928c58b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fa928cb2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdca3b598f R14: 00007fa9261ce300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.4.0-rc6-next-20230616 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 89 f4 06 03 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 f3 0f 1e fa 65 8b 05 2d 85 b7 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 8b 03 00 a9 RSP: 0018:ffff88806cf09e40 EFLAGS: 00000002 RAX: 0000000080010002 RBX: 0000000000000001 RCX: ffffffff813c050e RDX: ffff888008d751c0 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00000149d3a44ac0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806cf2c250 R13: ffff88806cf2b940 R14: ffff88806cf2b9c0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bcf5575618 CR3: 0000000016926000 CR4: 0000000000350ee0 Call Trace: __hrtimer_run_queues+0x33a/0xb60 hrtimer_interrupt+0x2ef/0x750 __sysvec_apic_timer_interrupt+0xff/0x380 sysvec_apic_timer_interrupt+0x69/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 43 d9 31 00 fb f4 e9 9b 55 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e27e70 EFLAGS: 00000202 RAX: 00000000005a06b5 RBX: 0000000000000001 RCX: ffffffff8450950e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812889a5 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6a00 R10: ffff88806cf35003 R11: 0000000000000001 R12: ffffffff85d3a990 R13: 1ffff110011c4fd3 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x19f/0x200 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess): 0: b9 b3 04 01 76 mov $0x760104b3,%ecx 5: 0b 44 89 e0 or -0x20(%rcx,%rcx,4),%eax 9: 5b pop %rbx a: 41 5c pop %r12 c: e9 f7 32 33 03 jmpq 0x3333308 11: 48 81 fb 00 30 60 86 cmp $0xffffffff86603000,%rbx 18: 72 ec jb 0x6 1a: 48 81 fb f1 55 74 86 cmp $0xffffffff867455f1,%rbx 21: 73 e3 jae 0x6 23: 41 bc 01 00 00 00 mov $0x1,%r12d 29: 5b pop %rbx * 2a: 44 89 e0 mov %r12d,%eax <-- trapping instruction 2d: 41 5c pop %r12 2f: e9 d4 32 33 03 jmpq 0x3333308 34: 48 c7 c7 c4 80 d3 85 mov $0xffffffff85d380c4,%rdi 3b: e8 78 2b 61 00 callq 0x612bb8