hrtimer: interrupt took 53021 ns UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 syz-executor.6 (10424) used greatest stack depth: 23048 bytes left watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.0:10426] Modules linked in: irq event stamp: 2520239 hardirqs last enabled at (2520238): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2520239): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2496256): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2496261): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 10426 Comm: syz-executor.0 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x5c/0x2490 Code: ef 09 00 00 41 8b 1f 31 c0 85 db 0f 84 1e 03 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 6f 58 48 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 07 1a 00 00 49 8b 47 58 4d 8d 6f 48 4c 89 ea 48 89 04 24 48 RSP: 0018:ffff88806cf09768 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 1ffff1100d9e1306 RSI: ffffffff81bf472a RDI: ffff88806cf097d8 RBP: ffff88806cf09830 R08: 0000000000000001 R09: ffff88806cf09818 R10: 000000000003c001 R11: 000000000001d110 R12: ffff88806cf098a0 R13: 0000000000000000 R14: ffff88803d7ed280 R15: ffff88806cf097d8 FS: 00007f72a91a2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a7f2f5a0e0 CR3: 000000003d5d2000 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+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 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:__orc_find+0x6f/0xf0 Code: 77 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88803e9766e0 EFLAGS: 00000217 RAX: 1ffffffff0c98de1 RBX: ffffffff864c6f0c RCX: ffffffff818bc637 RDX: 0000000000000000 RSI: ffffffff8683d824 RDI: ffffffff864c6f04 RBP: ffffffff864c6f04 R08: ffffffff8683d824 R09: ffff88803e9767d8 R10: 000000000003c001 R11: 0000000000023d24 R12: ffffffff864c6f14 R13: ffffffff864c6f04 R14: ffffffff864c6f04 R15: dffffc0000000000 unwind_next_frame+0x2b7/0x2490 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 __free_slab+0x10d/0x130 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 jbd2_journal_add_journal_head+0x367/0x5d0 jbd2_journal_get_create_access+0x44/0x560 __ext4_journal_get_create_access+0x54/0x200 ext4_ind_map_blocks+0xc31/0x2330 ext4_map_blocks+0x8fb/0x1500 ext4_do_writepages+0x17bd/0x30d0 ext4_writepages+0x2f2/0x700 do_writepages+0x1aa/0x810 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb3/0xf0 filemap_write_and_wait_range+0xa5/0x130 ext4_file_write_iter+0xfda/0x18e0 iter_file_splice_write+0xa09/0x1060 direct_splice_actor+0x192/0x7a0 splice_direct_to_actor+0x348/0x9d0 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: 0033:0x7f72abc2cb19 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:00007f72a91a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f72abd3ff60 RCX: 00007f72abc2cb19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007f72abc86f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff3ef2220f R14: 00007f72a91a2300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 00 00 add %al,(%rax) 2: 41 8b 1f mov (%r15),%ebx 5: 31 c0 xor %eax,%eax 7: 85 db test %ebx,%ebx 9: 0f 84 1e 03 00 00 je 0x32d f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 49 8d 6f 58 lea 0x58(%r15),%rbp 1d: 48 89 ea mov %rbp,%rdx 20: 48 c1 ea 03 shr $0x3,%rdx 24: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 28: 0f 85 07 1a 00 00 jne 0x1a35 <-- trapping instruction 2e: 49 8b 47 58 mov 0x58(%r15),%rax 32: 4d 8d 6f 48 lea 0x48(%r15),%r13 36: 4c 89 ea mov %r13,%rdx 39: 48 89 04 24 mov %rax,(%rsp) 3d: 48 rex.W