audit: type=1400 audit(1729202036.571:11): avc: denied { watch_reads } for pid=16293 comm="syz-executor.2" path="/syzkaller-testdir463085067/syzkaller.rwihIJ/0" dev="sda" ino=15976 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir permissive=1 watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:16295] Modules linked in: irq event stamp: 2395511 hardirqs last enabled at (2395510): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2395511): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2364960): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2364963): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 16295 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:unwind_next_frame+0x491/0x2490 Code: 85 48 c7 c0 85 cc ac 85 eb 49 48 c7 c1 c0 cc ac 85 48 ba 00 00 00 00 00 fc ff df 48 8d 41 05 48 89 c6 48 c1 ee 03 0f b6 14 16 <48> 89 c6 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 16 17 00 00 0f b6 51 RSP: 0018:ffff88806ce09778 EFLAGS: 00000213 RAX: ffffffff867c8e6f RBX: 0000000000000001 RCX: ffffffff867c8e6a RDX: 0000000000000000 RSI: 1ffffffff0cf91cd RDI: ffffffff86478844 RBP: ffff88806ce09840 R08: ffffffff867c8e6a R09: ffff88806ce09828 R10: 000000000003c001 R11: 00000000000121bf R12: ffff88806ce09848 R13: ffff88806ce09830 R14: ffff88806ce09829 R15: ffff88806ce097e8 FS: 00007f1fbd5fe700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1358e0ff8 CR3: 000000003d674000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 __kasan_record_aux_stack+0x8c/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 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+0x2cb/0x5d0 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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0xad/0xf0 Code: 48 01 d8 48 39 c1 73 b0 4c 8d 63 fc 4c 39 e5 76 b3 4d 29 ee 49 c1 fe 02 4b 8d 04 76 48 8d 04 46 48 83 c4 10 5b 5d 41 5c 41 5d <41> 5e 41 5f e9 5a eb 6f 03 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 RSP: 0018:ffff88803ccbf780 EFLAGS: 00000286 RAX: ffffffff86833076 RBX: 0000000000000001 RCX: ffffffff818b4a5b RDX: 0000000000000000 RSI: ffffffff86833076 RDI: ffffffff864bf44c RBP: ffff88803ccbf860 R08: ffffffff86833076 R09: ffff88803ccbf848 R10: 000000000003c001 R11: 0000000000023cc1 R12: ffff88803ccbf868 R13: ffff88803ccbf850 R14: 0000000000000000 R15: dffffc0000000000 unwind_next_frame+0x2b7/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 __kasan_record_aux_stack+0x8c/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 kfree+0x28e/0x480 __free_slab+0x100/0x120 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 inotify_update_watch+0x439/0xad0 __x64_sys_inotify_add_watch+0x2bf/0x350 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1fc00a9b19 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:00007f1fbd5fe188 EFLAGS: 00000246 ORIG_RAX: 00000000000000fe RAX: ffffffffffffffda RBX: 00007f1fc01bd020 RCX: 00007f1fc00a9b19 RDX: 00000001630009ba RSI: 0000000020000300 RDI: 0000000000000005 RBP: 00007f1fc0103f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcab55d3bf R14: 00007f1fbd5fe300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 147 Comm: kworker/u10:3 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:ieee80211_sta_get_rates+0x345/0x5e0 Code: 80 38 00 0f 85 1b 02 00 00 49 8b 46 08 4b 8d 14 64 4c 8d 24 90 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 0f b6 0c 02 <4c> 89 e2 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 f4 01 00 00 45 RSP: 0018:ffff8880162bf988 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000004 RCX: 0000000000000000 RDX: 1ffff110031adb85 RSI: ffffffff845d1757 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff888015914138 R10: 000000000000000c R11: 0000000000000116 R12: ffff888018d6dc28 R13: 000000000000000c R14: ffff888018d6b088 R15: 0000000000000014 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563edd3984ec CR3: 0000000015f2e000 CR4: 0000000000350ef0 Call Trace: ieee80211_ibss_rx_queued_mgmt+0x1092/0x2f90 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 Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 85 48 c7 test %ecx,-0x39(%rax) 3: c0 85 cc ac 85 eb 49 rolb $0x49,-0x147a5334(%rbp) a: 48 c7 c1 c0 cc ac 85 mov $0xffffffff85acccc0,%rcx 11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 18: fc ff df 1b: 48 8d 41 05 lea 0x5(%rcx),%rax 1f: 48 89 c6 mov %rax,%rsi 22: 48 c1 ee 03 shr $0x3,%rsi 26: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx * 2a: 48 89 c6 mov %rax,%rsi <-- trapping instruction 2d: 83 e6 07 and $0x7,%esi 30: 40 38 f2 cmp %sil,%dl 33: 7f 08 jg 0x3d 35: 84 d2 test %dl,%dl 37: 0f 85 16 17 00 00 jne 0x1753 3d: 0f .byte 0xf 3e: b6 51 mov $0x51,%dh