loop3: detected capacity change from 0 to 1304 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.4:9212] Modules linked in: irq event stamp: 2150853 hardirqs last enabled at (2150852): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2150853): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2140426): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2140439): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 9212 Comm: syz-executor.4 Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 4e a9 fc 48 89 ef e8 6e c1 a9 fc 80 e7 02 74 06 e8 84 1b d3 fc fb 65 ff 0d 54 bc 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88806ce09b78 EFLAGS: 00000206 RAX: 000000000020d196 RBX: 0000000000000202 RCX: 1ffffffff0fdfab6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff88800ce6a4a0 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 0000000000000000 R12: ffff8880096a1500 R13: ffffea0001048500 R14: 0000000000000000 R15: ffff888041217600 FS: 00007fbf6c03d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa059308998 CR3: 000000003d16e000 CR4: 0000000000350ef0 DR0: ffff7fffffff01dd DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __delete_object+0x2b/0x50 kmem_cache_free+0x2ae/0x470 skb_release_data+0x814/0x990 consume_skb+0xd0/0x160 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 44 92 ab ff 4d 85 ed 74 06 e8 6a 5f d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803f377650 EFLAGS: 00000286 RAX: 000000000020a915 RBX: ffffea0000549880 RCX: 1ffffffff0fdfab6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a686 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdd9f1 R10: ffffffff87eecf8f R11: 00000000000007e0 R12: ffff88806ce40350 R13: 0000000000000200 R14: ffffea000035f9c0 R15: ffff888015262250 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 jbd2__journal_start+0x193/0x6b0 __ext4_journal_start_sb+0x183/0x600 ext4_dirty_inode+0xa5/0x130 __mark_inode_dirty+0x1c1/0xd40 generic_update_time+0xcb/0xf0 touch_atime+0x4bb/0x590 ext4_file_read_iter+0x371/0x4a0 copy_splice_read+0x5c6/0xb70 do_splice_read+0x22f/0x2a0 splice_direct_to_actor+0x2a9/0x9d0 do_splice_direct+0x17a/0x250 do_sendfile+0xaf4/0xe60 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbf6eac7b19 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:00007fbf6c03d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fbf6ebdaf60 RCX: 00007fbf6eac7b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003 RBP: 00007fbf6eb21f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4306be0f R14: 00007fbf6c03d300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_freelist+0x14a/0x170 Code: 24 20 00 00 00 00 83 e2 01 75 b8 90 0f 0b 48 8b 17 be ff ff ff ff 65 48 8b 05 6a c1 7d 7e 48 8d 7c 02 20 e8 98 66 00 03 85 c0 <75> 04 90 0f 0b 90 8b 35 ee 48 bb 04 e9 ca fe ff ff 0f 1f 44 00 00 RSP: 0018:ffff88806cf09760 EFLAGS: 00000002 RAX: 0000000000000001 RBX: ffff88806cf40330 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff88806cf40350 RDI: ffff88800961dd10 RBP: ffff88806cf097c0 R08: 0000000000000001 R09: fffffbfff0fdd9ec R10: ffffffff87eecf67 R11: ffff88806cf40350 R12: ffffea00004edf00 R13: ffff888008c4f780 R14: ffff888008c4f780 R15: ffffea00004edf00 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a795177618 CR3: 000000000d660000 CR4: 0000000000350ef0 Call Trace: ___slab_alloc+0x134/0x1200 kmem_cache_alloc_noprof+0x228/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e9 b0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000206 RAX: 00000000003d522d RBX: 0000000000000001 RCX: ffffffff8484caf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b10ea RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f9410 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 53 48 sbb %dl,0x48(%rbx) 3: 89 f3 mov %esi,%ebx 5: 48 8b 74 24 10 mov 0x10(%rsp),%rsi a: e8 66 4e a9 fc callq 0xfca94e75 f: 48 89 ef mov %rbp,%rdi 12: e8 6e c1 a9 fc callq 0xfca9c185 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 84 1b d3 fc callq 0xfcd31ba5 21: fb sti 22: 65 ff 0d 54 bc 7c 7b decl %gs:0x7b7cbc54(%rip) # 0x7b7cbc7d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 a3 1e 00 00 jmpq 0x1ed5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 97 1e 00 00 jmpq 0x1ed5 3e: 0f .byte 0xf