ISOFS: unable to read i-node block isofs_fill_super: get root inode failed watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:4985] Modules linked in: irq event stamp: 4626767 hardirqs last enabled at (4626766): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4626767): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (4602580): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4602583): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4985 Comm: syz-executor.1 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xc93/0x1a90 arch/x86/kernel/unwind_orc.c:545 Code: 80 3c 02 00 0f 85 f0 0b 00 00 48 89 ea 49 c7 45 58 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 48 89 ea <83> e2 07 38 d0 7f 08 84 c0 0f 85 8e 0b 00 00 4c 89 fa 4c 89 c6 41 RSP: 0018:ffff88806ce095c8 EFLAGS: 00000213 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff85a5043e RDX: ffff88806ce096d5 RSI: ffff8880496c7490 RDI: ffff88806ce096f8 RBP: ffff88806ce096d5 R08: ffffffff85a50443 R09: ffff8880496c7498 R10: 0000000000032042 R11: 1ffff1100d9c12c1 R12: ffff8880496c7498 R13: ffff88806ce096a0 R14: 1ffff1100d9c12c1 R15: ffffffff85a50442 FS: 00007f73e1da8700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cd26000 CR3: 000000000d54c000 CR4: 0000000000350ef0 Call Trace: 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 mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x1a6/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:447 netdev_alloc_skb include/linux/skbuff.h:2857 [inline] dev_alloc_skb include/linux/skbuff.h:2870 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4876 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4990 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x940 drivers/net/wireless/mac80211_hwsim.c:1740 __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:crc32_body+0x17a/0x600 lib/crc32.c:111 Code: 48 89 c1 48 c1 e9 03 42 0f b6 34 21 48 89 c1 83 e1 07 83 c1 03 40 38 f1 7c 09 40 84 f6 0f 85 ea 03 00 00 49 83 c7 08 44 8b 10 <4c> 89 f8 48 c1 e8 03 42 0f b6 0c 20 4c 89 f8 83 e0 07 83 c0 03 38 RSP: 0018:ffff8880496c7328 EFLAGS: 00000282 RAX: ffffffff845bf0cc RBX: 0000000096dc05cd RCX: 0000000000000007 RDX: 0000000000040000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000001215553c R08: 0000000000000000 R09: 00000000eb05a612 R10: 000000007f62da5a R11: 0000000000000000 R12: dffffc0000000000 R13: ffffffff845bdfc0 R14: 0000000000000163 R15: ffff8880191d2b1c chksum_update+0x4c/0xb0 crypto/crc32c_generic.c:88 crypto_shash_update+0xca/0x120 crypto/shash.c:131 ext4_chksum fs/ext4/ext4.h:2302 [inline] ext4_block_bitmap_csum_set+0x21b/0x3b0 fs/ext4/bitmap.c:94 ext4_mb_mark_diskspace_used+0x82f/0x1690 fs/ext4/mballoc.c:3381 ext4_mb_new_blocks+0xc48/0x45c0 fs/ext4/mballoc.c:5261 ext4_ext_map_blocks+0x1d49/0x5830 fs/ext4/extents.c:4312 ext4_map_blocks+0x63f/0x1910 fs/ext4/inode.c:672 ext4_getblk+0x144/0x680 fs/ext4/inode.c:869 ext4_bread+0x29/0x1f0 fs/ext4/inode.c:921 ext4_append+0x228/0x4e0 fs/ext4/namei.c:83 ext4_init_new_dir+0x25e/0x4d0 fs/ext4/namei.c:2874 ext4_mkdir+0x3c1/0xb10 fs/ext4/namei.c:2919 vfs_mkdir+0x493/0x750 fs/namei.c:3706 do_mkdirat+0x150/0x2b0 fs/namei.c:3728 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f73e4831c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 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:00007f73e1da7fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f73e4831c27 RDX: 0000000000000001 RSI: 00000000000001ff RDI: 0000000020000180 RBP: 00007f73e1da8040 R08: 0000000000000000 R09: 0000000000100000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000180 R14: 00007f73e1da8000 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4982 Comm: syz-executor.5 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:634 Code: 00 66 0f 1f 84 00 00 00 00 00 0f 01 ca 6a ff e8 16 05 00 00 48 89 e7 e8 6e d7 e5 ff e9 39 06 00 00 66 0f 1f 84 00 00 00 00 00 <0f> 01 ca 6a ff e8 f6 04 00 00 48 89 e7 e8 ee d5 e5 ff e9 19 06 00 RSP: 0018:ffff88804c0cf248 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffff88800fa68000 RCX: ffffffff81279b47 RDX: ffffed1001f4d001 RSI: 0000000000000004 RDI: ffff88800fa68000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffff88800fa68003 R10: ffffed1001f4d000 R11: 0000000000000001 R12: 0000000000000003 R13: ffffed1001f4d000 R14: 0000000000000001 R15: 1ffff11009819e4f FS: 00007f706374c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d326000 CR3: 0000000049c70000 CR4: 0000000000350ee0 Call Trace: RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x122/0x8c0 kernel/locking/qspinlock.c:326 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 09 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 00 a4 f8 02 f3 90 73 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 ---------------- Code disassembly (best guess): 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 0f 85 f0 0b 00 00 jne 0xbfa a: 48 89 ea mov %rbp,%rdx d: 49 c7 45 58 00 00 00 movq $0x0,0x58(%r13) 14: 00 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 c1 ea 03 shr $0x3,%rdx 23: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 27: 48 89 ea mov %rbp,%rdx * 2a: 83 e2 07 and $0x7,%edx <-- trapping instruction 2d: 38 d0 cmp %dl,%al 2f: 7f 08 jg 0x39 31: 84 c0 test %al,%al 33: 0f 85 8e 0b 00 00 jne 0xbc7 39: 4c 89 fa mov %r15,%rdx 3c: 4c 89 c6 mov %r8,%rsi 3f: 41 rex.B