watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.7:6621] Modules linked in: irq event stamp: 4825075 hardirqs last enabled at (4825074): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4825075): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (4784600): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4784603): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 6621 Comm: syz-executor.7 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xa/0x160 kernel/stacktrace.c:82 Code: e8 6b 95 10 00 48 c7 c1 e0 45 48 84 31 d2 be 80 01 00 00 48 c7 c7 e0 43 48 84 e9 91 a4 5e 00 cc 48 b8 00 00 00 00 00 fc ff df <55> 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 48 83 ec 08 0f b6 RSP: 0018:ffff88806cf09888 EFLAGS: 00000282 RAX: dffffc0000000000 RBX: ffffffff813009f0 RCX: 1ffff1100d9e1301 RDX: 1ffff1100d9e131b RSI: ffffffff816c9519 RDI: ffff88806cf09948 RBP: ffff88806cf09918 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9e12ff R12: ffff88806cf09948 R13: 0000000000000000 R14: ffff88800ce4cec0 R15: ffff88804a31e780 FS: 00007fb9d9914700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffeab4a2f88 CR3: 0000000049dae000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:27 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:637 __kfree_skb net/core/skbuff.c:694 [inline] consume_skb net/core/skbuff.c:849 [inline] consume_skb+0x11d/0x2b0 net/core/skbuff.c:843 mac80211_hwsim_tx_frame+0x15a/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1717 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:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __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:cmpxchg_double_slab mm/slub.c:402 [inline] RIP: 0010:__slab_free+0xb5/0x5d0 mm/slub.c:3023 Code: 85 ed 89 c6 41 0f 94 c1 66 45 85 ff 74 08 45 31 f6 45 84 c9 74 0c 45 31 f6 40 84 f6 0f 84 e7 00 00 00 48 8b 8c 24 88 00 00 00 <41> f6 40 0b 40 74 61 48 83 7c 24 50 00 0f 85 0a 03 00 00 48 89 da RSP: 0018:ffff88800cbaebf0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000120010 RCX: 000000000012000f RDX: ffff88800fa47440 RSI: 0000000000000000 RDI: ffff88800804d640 RBP: ffff88800cbaecd0 R08: ffff88800804d640 R09: ffffffff816c9400 R10: ffff88800fa47440 R11: 0000000000000001 R12: ffffea00003e9180 R13: ffff88800fa46f30 R14: 0000000000000000 R15: 000000000012000f 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] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] __kmalloc+0x150/0x390 mm/slub.c:3967 kmalloc_array include/linux/slab.h:592 [inline] kcalloc include/linux/slab.h:603 [inline] ext4_find_extent+0xa3d/0xd30 fs/ext4/extents.c:906 ext4_ext_map_blocks+0x1c8/0x5830 fs/ext4/extents.c:4138 ext4_map_blocks+0x63f/0x1910 fs/ext4/inode.c:672 ext4_iomap_alloc fs/ext4/inode.c:3493 [inline] ext4_iomap_begin+0x3ad/0x700 fs/ext4/inode.c:3543 iomap_apply+0x164/0x810 fs/iomap/apply.c:46 __iomap_dio_rw+0x6cd/0x1110 fs/iomap/direct-io.c:517 iomap_dio_rw+0x31/0x90 fs/iomap/direct-io.c:605 ext4_dio_write_iter fs/ext4/file.c:571 [inline] ext4_file_write_iter+0xb26/0x18d0 fs/ext4/file.c:681 call_write_iter include/linux/fs.h:2002 [inline] do_iter_readv_writev+0x476/0x750 fs/read_write.c:740 do_iter_write+0x191/0x700 fs/read_write.c:866 vfs_iter_write+0x70/0xa0 fs/read_write.c:907 iter_file_splice_write+0x762/0xc30 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x10f/0x170 fs/splice.c:933 splice_direct_to_actor+0x387/0x980 fs/splice.c:888 do_splice_direct+0x1c4/0x290 fs/splice.c:976 do_sendfile+0x553/0x11e0 fs/read_write.c:1257 __do_sys_sendfile64 fs/read_write.c:1318 [inline] __se_sys_sendfile64 fs/read_write.c:1304 [inline] __x64_sys_sendfile64+0x1d1/0x210 fs/read_write.c:1304 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fb9dc39eb19 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:00007fb9d9914188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fb9dc4b1f60 RCX: 00007fb9dc39eb19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000003 RBP: 00007fb9dc3f8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000020d315 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc7542f0bf R14: 00007fb9d9914300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6631 Comm: systemd-udevd Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ioread8+0x46/0xc0 lib/iomap.c:75 Code: ff ff 03 00 77 7f e8 a9 6c 4c ff 48 89 ee bf 00 00 01 00 e8 0c 66 4c ff 48 81 fd 00 00 01 00 76 1e e8 8e 6c 4c ff 0f b7 d5 ec <44> 0f b6 e0 e8 81 6c 4c ff 44 89 e0 5b 5d 41 5c e9 f5 0c 2c 02 e8 RSP: 0018:ffff88806ce09db0 EFLAGS: 00000046 RAX: 0000000080010004 RBX: ffff88800f478000 RCX: ffffffff81f432a4 RDX: 000000000000c062 RSI: ffffffff81f432b2 RDI: 0000000000000007 RBP: 000000000001c062 R08: 0000000000000001 R09: 0000000000000003 R10: 0000000000010000 R11: 0000000000000001 R12: ffffffff8539efa0 R13: ffff88800f47c338 R14: 0000000000000000 R15: ffff88800f478008 FS: 00007fcefa6958c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce22e0ff8 CR3: 000000004da6a000 CR4: 0000000000350ef0 Call Trace: ata_bmdma_status+0x37/0x50 drivers/ata/libata-sff.c:3056 ata_bmdma_port_intr+0x179/0x3b0 drivers/ata/libata-sff.c:2808 __ata_sff_interrupt drivers/ata/libata-sff.c:1564 [inline] ata_bmdma_interrupt+0x28d/0x630 drivers/ata/libata-sff.c:2851 __handle_irq_event_percpu+0x2ef/0x6d0 kernel/irq/handle.c:156 handle_irq_event_percpu kernel/irq/handle.c:196 [inline] handle_irq_event+0xff/0x280 kernel/irq/handle.c:213 handle_edge_irq+0x249/0xd00 kernel/irq/chip.c:819 asm_call_irq_on_stack+0x12/0x20 __run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline] run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline] handle_irq arch/x86/kernel/irq.c:230 [inline] __common_interrupt arch/x86/kernel/irq.c:249 [inline] common_interrupt+0xdd/0x1a0 arch/x86/kernel/irq.c:239 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:626 RIP: 0010:instrument_atomic_read include/linux/instrumented.h:71 [inline] RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:367 [inline] RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x93/0x680 kernel/locking/lockdep.c:5577 Code: 84 24 88 00 00 00 31 c0 e9 87 03 00 00 65 8b 1d 63 e2 da 7e 89 db be 08 00 00 00 48 89 d8 48 c1 f8 06 48 8d 3c c5 c8 5e 67 85 78 38 45 00 48 0f a3 1d 98 2b 40 04 0f 82 26 04 00 00 48 c7 c3 RSP: 0018:ffff88803994f9b0 EFLAGS: 00000256 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000005 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff85675ec8 RBP: 1ffff11007329f38 R08: 0000000000000000 R09: ffffffff85675ecf R10: fffffbfff0acebd9 R11: 0000000000000001 R12: ffffffff84ff8c20 R13: 0000000000000001 R14: ffff88803994fc48 R15: ffffed1007329f91 rcu_lock_release include/linux/rcupdate.h:308 [inline] rcu_read_unlock include/linux/rcupdate.h:771 [inline] mntput_no_expire+0x163/0xcc0 fs/namespace.c:1156 mntput+0x67/0x90 fs/namespace.c:1214 path_put fs/namei.c:497 [inline] terminate_walk+0x453/0x610 fs/namei.c:599 path_lookupat+0x25a/0x860 fs/namei.c:2360 filename_lookup+0x1b1/0x570 fs/namei.c:2376 user_path_at include/linux/namei.h:60 [inline] do_utimes_path+0xd9/0x1b0 fs/utimes.c:93 do_utimes+0x31/0xf0 fs/utimes.c:143 __do_sys_utimensat fs/utimes.c:162 [inline] __se_sys_utimensat fs/utimes.c:146 [inline] __x64_sys_utimensat+0x190/0x260 fs/utimes.c:146 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcefab49b2f Code: 44 00 00 48 8b 15 61 a3 0c 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 41 89 ca 48 85 f6 74 2a b8 18 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 09 c3 0f 1f 84 00 00 00 00 00 48 8b 15 29 a3 RSP: 002b:00007ffce22e31f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000118 RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007fcefab49b2f RDX: 0000000000000000 RSI: 00007ffce22e3200 RDI: 00000000ffffff9c RBP: 0000000000000010 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffce22e3200 R14: 0000000000000124 R15: 00007ffce22e3260 ---------------- Code disassembly (best guess): 0: e8 6b 95 10 00 callq 0x109570 5: 48 c7 c1 e0 45 48 84 mov $0xffffffff844845e0,%rcx c: 31 d2 xor %edx,%edx e: be 80 01 00 00 mov $0x180,%esi 13: 48 c7 c7 e0 43 48 84 mov $0xffffffff844843e0,%rdi 1a: e9 91 a4 5e 00 jmpq 0x5ea4b0 1f: cc int3 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 55 push %rbp <-- trapping instruction 2b: 53 push %rbx 2c: 48 89 fb mov %rdi,%rbx 2f: 48 83 c7 10 add $0x10,%rdi 33: 48 89 fa mov %rdi,%rdx 36: 48 c1 ea 03 shr $0x3,%rdx 3a: 48 83 ec 08 sub $0x8,%rsp 3e: 0f .byte 0xf 3f: b6 .byte 0xb6