ISOFS: Unable to identify CD-ROM format. ISOFS: Unable to identify CD-ROM format. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 15885 at kernel/rcu/tree.c:2149 rcu_core+0x187c/0x2090 Modules linked in: CPU: 1 PID: 15885 Comm: syz-executor.1 Not tainted 6.1.0-rc5-next-20221115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_core+0x187c/0x2090 Code: b8 00 ca 9a 3b 49 0f 4e c4 48 3d 40 42 0f 00 48 0f 4c c2 4c 01 c0 48 89 44 24 08 e9 8a ed ff ff e8 e9 f5 47 00 e9 8b e8 ff ff <0f> 0b e9 1e f3 ff ff 0f 0b e9 ce ec ff ff e8 e1 e8 08 03 85 c0 0f RSP: 0018:ffff88806cf09e58 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000000001 RDX: 1ffff1100d9e73d4 RSI: 0000000000000006 RDI: ffff88806cf39ee8 RBP: ffff88806cf39e00 R08: 0000000000000000 R09: ffffffff85d0f557 R10: fffffbfff0ba1eaa R11: 0000000000000001 R12: ffffffffffffffff R13: ffff88806cf09ed8 R14: 0000000000000200 R15: ffff88803c6ad040 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc43844cb40 CR3: 0000000005426000 CR4: 0000000000350ee0 Call Trace: __do_softirq+0x1c7/0x8f9 __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:__rcu_read_unlock+0xed/0x520 Code: 00 85 c0 75 58 65 48 8b 1c 25 c0 86 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 47 01 00 00 8b RSP: 0018:ffff8880435af610 EFLAGS: 00000213 RAX: dffffc0000000000 RBX: ffff88803c6ad040 RCX: 1ffffffff0a43119 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88803c6ad434 RBP: ffff88803c6ad040 R08: 0000000000000000 R09: ffffea0000ec2687 R10: fffff940001d84d0 R11: 0000000000000001 R12: ffff88803c6ad040 R13: ffffea0000ec2688 R14: ffffea0000ec2600 R15: 0000000000000000 unlock_page_memcg+0xc7/0x230 page_remove_rmap+0x1ca/0x780 unmap_page_range+0x2002/0x2c30 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21a5/0x22e0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f39971beb19 Code: Unable to access opcode bytes at 0x7f39971beaef. RSP: 002b:00007f3994734218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f39972d1f68 RCX: 00007f39971beb19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f39972d1f6c RBP: 00007f39972d1f60 R08: 0000000000000016 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f39972d1f6c R13: 00007ffc81ba458f R14: 00007f3994734300 R15: 0000000000022000 irq event stamp: 14955 hardirqs last enabled at (14954): [] kasan_quarantine_put+0x8f/0x1f0 hardirqs last disabled at (14955): [] rcu_core+0x12e4/0x2090 softirqs last enabled at (14928): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (14945): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 00 85 c0 75 58 65 add %al,0x655875c0(%rbp) 6: 48 8b 1c 25 c0 86 03 mov 0x386c0,%rbx d: 00 e: 48 8d bb f4 03 00 00 lea 0x3f4(%rbx),%rdi 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx * 2a: 48 89 f8 mov %rdi,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 08 jl 0x3f 37: 84 d2 test %dl,%dl 39: 0f 85 47 01 00 00 jne 0x186 3f: 8b .byte 0x8b