watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.2:6661] Modules linked in: irq event stamp: 2943981 hardirqs last enabled at (2943980): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2943981): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2939448): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2939457): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 6661 Comm: syz-executor.2 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0x0/0x4f0 Code: e8 c5 8a 50 00 e9 e0 fb ff ff e8 bb 8a 50 00 e9 d6 fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 56 41 55 41 54 55 65 48 8b 2d 6d f9 c8 7e 53 48 8d RSP: 0018:ffff88806ce09b98 EFLAGS: 00000282 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 1ffff11007044b96 RSI: ffffffff85c14f00 RDI: ffff888038225cb0 RBP: ffff88801b084c40 R08: 0000000000000001 R09: ffff888038225cb8 R10: ffffffff863f274f R11: 00000000000c2f81 R12: 0000000000000000 R13: ffffed1003610ad3 R14: 1ffff1100d9c1375 R15: ffff88806ce09d90 FS: 00007fa8c7b0d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005571505de040 CR3: 000000003b638000 CR4: 0000000000350ef0 Call Trace: link_sta_info_get_bss+0x32f/0x480 ieee80211_rx_for_interface+0x6f/0x200 ieee80211_rx_list+0x1e54/0x2cf0 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 16 a6 ab fc 48 89 ef e8 0e 17 ac fc 80 e7 02 74 06 e8 24 26 d5 fc fb 65 ff 0d a4 54 7f 7b <74> 07 5b 5d e9 b3 1e 00 00 0f 1f 44 00 00 5b 5d e9 a7 1e 00 00 0f RSP: 0018:ffff888038237618 EFLAGS: 00000246 RAX: 00000000002cda3f RBX: 0000000000000246 RCX: 1ffffffff0fdca6c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8484521c RBP: ffffffff85cfbde0 R08: 0000000000000001 R09: fffffbfff0fda9d9 R10: ffffffff87ed4ecf R11: 00000000000007e0 R12: 0000000000000000 R13: 0000000000000246 R14: ffffea0000589940 R15: ffff888016265840 delete_object_full+0x46/0x70 kfree+0x28e/0x480 __free_slab+0x100/0x120 __put_partials+0xd8/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19c/0x230 __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 seq_open+0x55/0x170 __seq_open_private+0x3b/0xd0 seq_open_private+0x25/0x50 mounts_open_common+0x30c/0x700 do_dentry_open+0x71c/0x1420 vfs_open+0x82/0x3f0 path_openat+0x1cf3/0x2980 do_filp_open+0x1b8/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa8ca54aa04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007fa8c7b0d060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa8ca6aaf60 RCX: 00007fa8ca54aa04 RDX: 0000000000000002 RSI: 00007fa8c7b0d0f0 RDI: 00000000ffffff9c RBP: 00007fa8c7b0d0f0 R08: 0000000000000000 R09: 00007fa8c7b0cf70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007ffcdef7df6f R14: 00007fa8c7b0d300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 48 Comm: kworker/u10:2 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:srso_safe_ret+0x0/0x20 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 b8 <48> 8d 64 24 08 c3 cc cc 0f ae e8 e8 f0 ff ff ff 0f 0b 66 66 2e 0f RSP: 0018:ffff88800aecedb8 EFLAGS: 00000282 RAX: ffff88800aed0001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff88800aecfe01 RSI: ffff88800aecfe30 RDI: ffff88800aecee48 RBP: ffff88800aecee90 R08: ffffffff867960f0 R09: ffff88800aecee78 R10: 000000000003c001 R11: 0000000000009a2a R12: ffff88800aecee98 R13: ffff88800aecee80 R14: ffff88800aecfe38 R15: ffff88800aecee38 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe3a5fb3330 CR3: 0000000012eac000 CR4: 0000000000350ef0 Call Trace: srso_return_thunk+0x5/0x5f unwind_next_frame+0xa5c/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kfree+0x132/0x480 ieee80211_inform_bss+0x7f6/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_ibss_rx_queued_mgmt+0x18ba/0x2f90 ieee80211_iface_work+0xb5f/0xe40 cfg80211_wiphy_work+0x38d/0x610 process_one_work+0x8ee/0x1a00 worker_thread+0x674/0xe70 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 audit: type=1400 audit(1729202128.455:10): avc: denied { block_suspend } for pid=6803 comm="syz-executor.2" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout loop7: detected capacity change from 0 to 40 Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout loop7: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop4: detected capacity change from 0 to 40 loop5: detected capacity change from 0 to 40 loop1: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 ---------------- Code disassembly (best guess): 0: e8 c5 8a 50 00 callq 0x508aca 5: e9 e0 fb ff ff jmpq 0xfffffbea a: e8 bb 8a 50 00 callq 0x508aca f: e9 d6 fc ff ff jmpq 0xfffffcea 14: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 41 56 push %r14 30: 41 55 push %r13 32: 41 54 push %r12 34: 55 push %rbp 35: 65 48 8b 2d 6d f9 c8 mov %gs:0x7ec8f96d(%rip),%rbp # 0x7ec8f9aa 3c: 7e 3d: 53 push %rbx 3e: 48 rex.W 3f: 8d .byte 0x8d