isofs_fill_super: root inode is not a directory. Corrupted media? isofs_fill_super: root inode is not a directory. Corrupted media? isofs_fill_super: root inode is not a directory. Corrupted media? watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:11524] Modules linked in: irq event stamp: 123805164 hardirqs last enabled at (123805163): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (123805163): [] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (123805164): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (27384722): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (27384711): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 11524 Comm: syz-executor.1 Not tainted 5.10.45 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 ca 9c 61 fd 48 89 ef e8 52 58 62 fd f6 c7 02 75 0c 53 9d <65> ff 0d 34 e1 3c 7c 5b 5d c3 e8 2c bc 80 fd eb ed 66 2e 0f 1f 84 RSP: 0018:ffff888051ab7d08 EFLAGS: 00000202 RAX: 0000000007611deb RBX: 0000000000000202 RCX: 1ffffffff0a89799 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83c50dd4 RBP: ffff888042d2a450 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888042d2a450 R13: 1ffff1100a356fa5 R14: 0000000000000202 R15: ffff888051ab7ea8 FS: 00007f8a8a359700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055892509bf90 CR3: 000000004eac0000 CR4: 0000000000350ef0 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] prepare_to_wait_exclusive+0x122/0x220 kernel/sched/wait.c:262 io_cqring_wait fs/io_uring.c:7041 [inline] __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9119 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 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:00007f8a8a359188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 0000000000466609 RDX: 000000000000bae1 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe11fe6e5f R14: 00007f8a8a359300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11520 Comm: syz-executor.7 Not tainted 5.10.45 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x55/0x60 kernel/kcov.c:207 Code: 82 40 13 00 00 83 f8 02 75 20 48 8b 8a 48 13 00 00 8b 92 44 13 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 66 2e 0f 1f 84 00 00 00 00 00 41 55 41 54 49 89 fc 55 48 bd eb RSP: 0018:ffff888050ee7ce0 EFLAGS: 00000046 RAX: 0000000000040000 RBX: 0000000000000202 RCX: ffffc90008e28000 RDX: 0000000000040000 RSI: ffffffff8145ca09 RDI: ffff888046d22450 RBP: ffff888046d22450 R08: 0000000000000000 R09: ffff888046d22453 R10: ffffed1008da448a R11: 0000000000000001 R12: ffff888046d22450 R13: 1ffff1100a1dcfa5 R14: 0000000000000202 R15: ffff888050ee7ea8 FS: 00007f93c8f7a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000431830 CR3: 000000004e0e4000 CR4: 0000000000350ee0 Call Trace: trace_hardirqs_on+0x9/0x180 kernel/trace/trace_preemptirq.c:42 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x34/0x40 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] prepare_to_wait_exclusive+0x122/0x220 kernel/sched/wait.c:262 io_cqring_wait fs/io_uring.c:7041 [inline] __do_sys_io_uring_enter+0x821/0x1910 fs/io_uring.c:9119 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 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:00007f93c8f7a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 0000000000466609 RDX: 000000000000bae1 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fff0623745f R14: 00007f93c8f7a300 R15: 0000000000022000