audit: type=1804 audit(1662345060.279:6): pid=9735 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir1523661019/syzkaller.F5Q9f3/2/file0" dev="sda1" ino=13883 res=1 kvm: emulating exchange as write ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9741 at arch/x86/kvm/x86.c:8115 kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 arch/x86/kvm/x86.c:8115 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 9741 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 audit: type=1800 audit(1662345060.319:7): pid=9734 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=13883 res=0 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 audit: type=1804 audit(1662345060.319:8): pid=9740 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir1523661019/syzkaller.F5Q9f3/2/file0" dev="sda1" ino=13883 res=1 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:kvm_arch_vcpu_ioctl_run.cold+0x29/0x48 arch/x86/kvm/x86.c:8115 audit: type=1804 audit(1662345060.319:9): pid=9735 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir1523661019/syzkaller.F5Q9f3/2/file0" dev="sda1" ino=13883 res=1 Code: f9 e8 0b a8 70 f9 48 c7 c7 a0 23 62 88 e8 6a d9 01 00 0f 0b e9 46 aa 1b f9 e8 f3 a7 70 f9 48 c7 c7 a0 23 62 88 e8 52 d9 01 00 <0f> 0b e9 95 53 1b f9 e8 db a7 70 f9 48 c7 c7 a0 23 62 88 e8 3a d9 RSP: 0018:ffff888053acfa10 EFLAGS: 00010286 RAX: 0000000000000024 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed100a759f34 RBP: ffff888053acfbb0 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880917da000 R13: ffff888053ad0080 R14: 0000000000000000 R15: 0000000000000000 kvm_vcpu_ioctl+0x493/0xe10 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2847 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fbe43b3d279 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbe4244f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbe43c501f0 RCX: 00007fbe43b3d279 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 00007fbe43b972e9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff236df7bf R14: 00007fbe4244f300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..