watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.7:140271] Modules linked in: irq event stamp: 4327693 hardirqs last enabled at (4327692): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4327693): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4240362): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4240365): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 140271 Comm: syz-executor.7 Not tainted 6.4.0-next-20230703 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_is_held_type+0xe4/0x120 Code: 31 c0 44 39 f0 41 0f 94 c0 b8 ff ff ff ff 65 0f c1 05 40 c5 af 7b 83 f8 01 75 2e 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 c0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 fa 6d 02 00 44 89 c0 e9 RSP: 0018:ffff88806ce099f8 EFLAGS: 00000282 RAX: 0000000000000001 RBX: 0000000000000005 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8560b6c0 RDI: ffff88803e7d5c78 RBP: ffffffff8560b6c0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803e7d51c0 R13: ffff88803e7d5bb0 R14: 00000000ffffffff R15: ffff88803e7d5c78 FS: 00007fe954108700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5a4234e9c8 CR3: 000000003ecbe000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_addr_iter+0xf1/0x1e0 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_addr_match+0x128/0x180 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb37/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __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:put_cpu_partial+0x107/0x1b0 Code: 39 45 28 75 5e 48 c7 45 28 00 00 00 00 48 c7 c6 b2 cd 80 81 48 89 ef e8 37 f6 ac ff 48 85 db 74 06 e8 3d d9 d2 ff fb 4d 85 f6 <74> 1e 5b 4c 89 f6 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 12 fa ff RSP: 0018:ffff888042bdf530 EFLAGS: 00000246 RAX: 00000000003de929 RBX: 0000000000000200 RCX: ffffffff812d217f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8180cdd3 RBP: ffff88806ce3de20 R08: 0000000000000001 R09: fffffbfff0ef9d65 R10: ffffffff877ceb2f R11: 0000000000000001 R12: ffff88800844f780 R13: ffffea00003c3400 R14: 0000000000000000 R15: 0000000000000004 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x16b/0x370 __create_object+0x3c/0xc90 __kmem_cache_alloc_node+0x206/0x320 __kmalloc+0x4a/0x160 ext4_find_extent+0xa41/0xd30 ext4_ext_map_blocks+0x1c7/0x5940 ext4_map_blocks+0xaed/0x1970 ext4_append+0x1b7/0x540 ext4_init_new_dir+0x262/0x4c0 ext4_mkdir+0x3d3/0xb20 vfs_mkdir+0x24b/0x470 do_mkdirat+0x163/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fe956b91c27 Code: 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 0f 1f 44 00 00 b8 53 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:00007fe954107fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe956b91c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000700 RBP: 00007fe954108040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000200006c0 R13: 0000000020000700 R14: 00007fe954108000 R15: 0000000020000240 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-next-20230703 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xb20 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 5a 21 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84550eab RDX: fffffbfff0b4cb09 RSI: 0000000000000004 RDI: ffffffff85a65840 RBP: ffffffff85a65840 R08: 0000000000000000 R09: fffffbfff0b4cb08 R10: ffffffff85a65843 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4cb08 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562df7feb618 CR3: 0000000019dd6000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6e7/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __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: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 c3 a2 2f 00 fb f4 e9 db 56 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e0fe70 EFLAGS: 00000202 RAX: 0000000000e954f7 RBX: 0000000000000001 RCX: ffffffff8452ca0e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8128bd35 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e69f8 R10: ffff88806cf34fc3 R11: 0000000000000001 R12: ffffffff85d408d0 R13: 1ffff110011c1fd3 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ba/0x210 secondary_startup_64_no_verify+0x179/0x17b hpet: Lost 4 RTC interrupts hpet: Lost 1 RTC interrupts netlink: 4 bytes leftover after parsing attributes in process `syz-executor.6'. nfs4: Unknown parameter '[' ---------------- Code disassembly (best guess): 0: 31 c0 xor %eax,%eax 2: 44 39 f0 cmp %r14d,%eax 5: 41 0f 94 c0 sete %r8b 9: b8 ff ff ff ff mov $0xffffffff,%eax e: 65 0f c1 05 40 c5 af xadd %eax,%gs:0x7bafc540(%rip) # 0x7bafc556 15: 7b 16: 83 f8 01 cmp $0x1,%eax 19: 75 2e jne 0x49 1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 22: 00 23: 74 01 je 0x26 25: fb sti 26: 48 83 c4 08 add $0x8,%rsp * 2a: 44 89 c0 mov %r8d,%eax <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: e9 fa 6d 02 00 jmpq 0x26e36 3c: 44 89 c0 mov %r8d,%eax 3f: e9 .byte 0xe9