ISOFS: Logical zone size(0) < hardware blocksize(1024) EXT4-fs (loop4): VFS: Can't find ext4 filesystem EXT4-fs (loop6): VFS: Can't find ext4 filesystem watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.4:11602] Modules linked in: irq event stamp: 4952127 hardirqs last enabled at (4952126): [<ffffffff84000d02>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4952127): [<ffffffff83e50efb>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (4926140): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4926143): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 11602 Comm: syz-executor.4 Not tainted 5.10.216 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:160 [inline] RIP: 0010:unwind_next_frame+0x1cb/0x1a90 arch/x86/kernel/unwind_orc.c:448 Code: 4d 85 ff 0f 84 48 01 00 00 49 81 ff 00 00 00 81 0f 82 57 04 00 00 49 81 ff 82 40 20 84 0f 83 4a 04 00 00 44 8b 15 85 6a b8 03 <4c> 89 fe 48 81 ee 00 00 00 81 48 c1 ee 08 41 8d 52 ff 39 d6 0f 83 RSP: 0018:ffff88806ce09648 EFLAGS: 00000287 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84eb8ce0 RDX: dffffc0000000000 RSI: ffffffff8400011f RDI: ffff88806ce09720 RBP: ffff88806ce09755 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9c12d1 R12: ffff88806ce09768 R13: ffff88806ce09720 R14: 1ffff1100d9c12d1 R15: ffffffff8400011e FS: 00007fb2f253b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb7852cf42d CR3: 000000004aac6000 CR4: 0000000000350ef0 Call Trace: <IRQ> arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x110/0x160 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1542 [inline] slab_free_freelist_hook+0xa9/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:636 __kfree_skb net/core/skbuff.c:693 [inline] kfree_skb net/core/skbuff.c:710 [inline] kfree_skb+0x122/0x2c0 net/core/skbuff.c:704 __dev_kfree_skb_any net/core/dev.c:3125 [inline] __dev_kfree_skb_any+0x95/0xa0 net/core/dev.c:3120 mac80211_hwsim_tx_frame_nl+0xa46/0xc10 drivers/net/wireless/mac80211_hwsim.c:1302 mac80211_hwsim_tx_frame+0x110/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1714 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1584 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1648 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1665 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 </IRQ> __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:refill_obj_stock+0x18c/0x320 mm/memcontrol.c:3228 Code: f4 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 45 01 00 00 44 89 65 18 41 81 fc 00 10 00 00 77 56 4d 85 f6 75 4a 41 55 9d <48> 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f e9 b1 f0 b1 02 48 b8 00 RSP: 0018:ffff88804b197a90 EFLAGS: 00000286 RAX: 000000000048925b RBX: ffff88806ce38cf8 RCX: 1ffffffff0d15922 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816e4f48 RBP: ffff88806ce38ce0 R08: 0000000000000001 R09: ffffffff8686479f R10: fffffbfff0d0c8f3 R11: 0000000000000001 R12: 0000000000000540 R13: 0000000000000286 R14: 0000000000000200 R15: ffff88806ce38cf0 memcg_slab_free_hook mm/slab.h:382 [inline] memcg_slab_free_hook mm/slab.h:351 [inline] do_slab_free mm/slub.c:3105 [inline] ___cache_free+0x101/0x360 mm/slub.c:3156 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] kmem_cache_alloc_bulk+0x147/0x320 mm/slub.c:3343 io_alloc_req io_uring/io_uring.c:1977 [inline] io_submit_sqes+0x6f76/0x85c0 io_uring/io_uring.c:7378 __do_sys_io_uring_enter+0x6b5/0x18c0 io_uring/io_uring.c:9918 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xcc RIP: 0033:0x7fb2f4fe6b19 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:00007fb2f253b188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007fb2f50fa020 RCX: 00007fb2f4fe6b19 RDX: 0000000000000000 RSI: 00000000000058ab RDI: 0000000000000003 RBP: 00007fb2f5040f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff53a75bdf R14: 00007fb2f253b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.10.216 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: phy15 ieee80211_iface_work RIP: 0010:__kasan_check_read+0x4/0x10 mm/kasan/common.c:71 Code: 66 0f 1f 44 00 00 e9 4b d2 b3 02 66 66 2e 0f 1f 84 00 00 00 00 00 48 c7 c0 fb ff ff ff e9 34 d2 b3 02 cc cc cc cc 48 8b 0c 24 <89> f6 31 d2 e9 83 22 00 00 0f 1f 00 48 8b 0c 24 89 f6 ba 01 00 00 RSP: 0018:ffff88800891f320 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880406c4668 RCX: ffffffff83b6bd4e RDX: ffff8880088fb480 RSI: 0000000000000008 RDI: ffff888048d98d58 RBP: ffff888048d98d00 R08: ffff888048d9b3f0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888048d98d58 R13: ffff888044258450 R14: 0000000000000001 R15: ffff88800891f588 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb785389340 CR3: 0000000046f5c000 CR4: 0000000000350ee0 Call Trace: <NMI> </NMI> instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] _ieee80211_hw_check include/net/mac80211.h:2614 [inline] ieee80211_bss_info_update+0x80e/0xc00 net/mac80211/scan.c:164 ieee80211_rx_bss_info net/mac80211/ibss.c:1130 [inline] ieee80211_rx_mgmt_probe_beacon+0xc96/0x1780 net/mac80211/ibss.c:1619 ieee80211_ibss_rx_queued_mgmt+0xddd/0x1750 net/mac80211/ibss.c:1646 ieee80211_iface_work+0x6e3/0x930 net/mac80211/iface.c:1453 process_one_work+0x9a9/0x14b0 kernel/workqueue.c:2282 worker_thread+0x61d/0x1310 kernel/workqueue.c:2428 kthread+0x38f/0x470 kernel/kthread.c:313 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299 ---------------- Code disassembly (best guess): 0: 4d 85 ff test %r15,%r15 3: 0f 84 48 01 00 00 je 0x151 9: 49 81 ff 00 00 00 81 cmp $0xffffffff81000000,%r15 10: 0f 82 57 04 00 00 jb 0x46d 16: 49 81 ff 82 40 20 84 cmp $0xffffffff84204082,%r15 1d: 0f 83 4a 04 00 00 jae 0x46d 23: 44 8b 15 85 6a b8 03 mov 0x3b86a85(%rip),%r10d # 0x3b86aaf * 2a: 4c 89 fe mov %r15,%rsi <-- trapping instruction 2d: 48 81 ee 00 00 00 81 sub $0xffffffff81000000,%rsi 34: 48 c1 ee 08 shr $0x8,%rsi 38: 41 8d 52 ff lea -0x1(%r10),%edx 3c: 39 d6 cmp %edx,%esi 3e: 0f .byte 0xf 3f: 83 .byte 0x83