loop6: detected capacity change from 0 to 40 watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.6:5820] Modules linked in: irq event stamp: 5400977 hardirqs last enabled at (5400976): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5400977): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5398762): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5398765): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 5820 Comm: syz-executor.6 Not tainted 6.2.0-rc3-next-20230111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_raw_spin_lock+0x8a/0x270 Code: 14 02 48 89 f8 65 48 8b 0c 25 28 00 00 00 48 89 4c 24 60 31 c9 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 b4 01 00 00 8b 43 04 <3d> ad 4e ad de 0f 85 50 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffff88806ce097a0 EFLAGS: 00000246 RAX: 00000000dead4ead RBX: ffff888045449668 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000301 RDI: ffff88804544966c RBP: 1ffff1100d9c12f5 R08: 0000000000000000 R09: ffffffff876559af R10: fffffbfff0ecab35 R11: 0000000000000001 R12: ffff88806ce09d70 R13: ffff88806ce09b80 R14: ffff88806ce09d70 R15: 0000000000000080 FS: 00007f06a270e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555635cc58 CR3: 0000000037606000 CR4: 0000000000350ef0 Call Trace: ieee80211_rx_handlers+0xd9/0xa6d0 ieee80211_prepare_and_rx_handle+0x1c8e/0x58a0 ieee80211_rx_for_interface+0x112/0x200 ieee80211_rx_list+0x1c5d/0x2bc0 ieee80211_rx_napi+0xde/0x3c0 ieee80211_tasklet_handler+0xd8/0x140 tasklet_action_common.constprop.0+0x208/0x2f0 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_acquire.part.0+0x14d/0x340 Code: 87 84 48 83 c4 20 e8 02 41 16 03 b8 ff ff ff ff 65 0f c1 05 85 67 d6 7e 83 f8 01 0f 85 9f 01 00 00 48 85 ed 0f 85 90 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff88803c137010 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff11007826e04 RCX: 000000000000704d RDX: 1ffff11008e0f483 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff87655917 R10: fffffbfff0ecab22 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff856c9a00 fs_reclaim_acquire+0xda/0x170 prepare_alloc_pages+0x15b/0x500 __alloc_pages+0x149/0x510 alloc_pages+0x1a0/0x260 filemap_alloc_folio+0x363/0x400 __filemap_get_folio+0x32b/0xcd0 pagecache_get_page+0x2e/0x130 block_write_begin+0x35/0x450 cont_write_begin+0x4fe/0x700 fat_write_begin+0x89/0x180 generic_perform_write+0x25a/0x580 __generic_file_write_iter+0x308/0x4b0 generic_file_write_iter+0xe7/0x350 do_iter_readv_writev+0x211/0x3c0 do_iter_write+0x18b/0x700 vfs_iter_write+0x74/0xb0 iter_file_splice_write+0x73e/0xcb0 direct_splice_actor+0x113/0x180 splice_direct_to_actor+0x33a/0x8c0 do_splice_direct+0x1bc/0x290 do_sendfile+0xb1d/0x12c0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f06a51b9b19 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:00007f06a270e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f06a52cd020 RCX: 00007f06a51b9b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000007 RBP: 00007f06a5213f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe828f994f R14: 00007f06a270e300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 5817 Comm: syz-executor.1 Not tainted 6.2.0-rc3-next-20230111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 Code: bf 03 00 00 00 e9 58 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffff88806cf08fb8 EFLAGS: 00000046 RAX: 00000000ffffffe4 RBX: 1ffff1100d9e11f8 RCX: ffffffff815caa91 RDX: ffff888015a69ac0 RSI: 00000000ffffffe4 RDI: 0000000000000000 RBP: ffff88806cf09000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806cf09140 R13: ffff888008de8bc0 R14: 00000000ffffffe4 R15: ffff88806cf08fe0 FS: 00007f298aa06700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2be3b000 CR3: 00000000192d6000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: perf_event_output_forward+0x101/0x2c0 __perf_event_overflow+0x3f3/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 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:ffff88806cf095a8 EFLAGS: 00000217 RAX: 1ffffffff0bbab99 RBX: ffffffff85dd5ccc RCX: ffffffff818aea0d RDX: 0000000000000000 RSI: ffffffff8610f75a RDI: ffffffff85dd5cc0 RBP: ffffffff85dd5cc0 R08: ffffffff8610f75a R09: ffffffff8611864a R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff85dd5cdc R13: ffffffff85dd5cc0 R14: ffffffff85dd5cc0 R15: dffffc0000000000 unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x115/0x1c0 Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 50 0b 7d 81 48 89 df e8 09 0c af ff 48 85 ed 74 06 e8 af 81 d3 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 54 fa ff RSP: 0018:ffff888019dff4f8 EFLAGS: 00000246 RAX: 000000000043a943 RBX: ffff88806cf3d960 RCX: ffffffff812b79df RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff87655967 R10: fffffbfff0ecab2c R11: 0000000000000001 R12: ffff88800844f780 R13: 0000000000000000 R14: ffffea00003a4640 R15: 0000000000000002 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x300 jbd2__journal_start+0x194/0x6b0 __ext4_journal_start_sb+0x4c2/0x6f0 ext4_dirty_inode+0xa5/0x130 __mark_inode_dirty+0x1aa/0xee0 touch_atime+0x68e/0x750 filemap_read+0x99d/0xb60 generic_file_read_iter+0x35c/0x550 ext4_file_read_iter+0x186/0x4a0 generic_file_splice_read+0x18b/0x4d0 do_splice_to+0x1bc/0x240 splice_direct_to_actor+0x2b0/0x8c0 do_splice_direct+0x1bc/0x290 do_sendfile+0xb1d/0x12c0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f298d4b1b19 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:00007f298aa06188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f298d5c5020 RCX: 00007f298d4b1b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000006 RBP: 00007f298d50bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd290c4cf R14: 00007f298aa06300 R15: 0000000000022000 kworker/u4:4: attempt to access beyond end of device loop6: rw=1048577, sector=124, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 31, lost async page write ---------------- Code disassembly (best guess): 0: 14 02 adc $0x2,%al 2: 48 89 f8 mov %rdi,%rax 5: 65 48 8b 0c 25 28 00 mov %gs:0x28,%rcx c: 00 00 e: 48 89 4c 24 60 mov %rcx,0x60(%rsp) 13: 31 c9 xor %ecx,%ecx 15: 83 e0 07 and $0x7,%eax 18: 83 c0 03 add $0x3,%eax 1b: 38 d0 cmp %dl,%al 1d: 7c 08 jl 0x27 1f: 84 d2 test %dl,%dl 21: 0f 85 b4 01 00 00 jne 0x1db 27: 8b 43 04 mov 0x4(%rbx),%eax * 2a: 3d ad 4e ad de cmp $0xdead4ead,%eax <-- trapping instruction 2f: 0f 85 50 01 00 00 jne 0x185 35: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3c: fc ff df 3f: 4c rex.WR