WARNING in handle

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in handle_desc (2) kvm				1	1543d	1539d	0/28	auto-closed as invalid on 2020/12/29 08:10
upstream	WARNING in handle_desc kvm	C	done		6	1889d	1897d	13/28	fixed on 2019/10/15 23:40
linux-4.19	WARNING in handle_desc (2)	C		error	10	723d	1434d	0/1	upstream: reported C repro on 2020/12/18 04:57

audit: type=1400 audit(1568974230.200:36): avc: denied { map } for pid=7617 comm="syz-executor866" path="/root/syz-executor866017908" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7617 at arch/x86/kvm/vmx.c:7251 handle_desc.cold+0x11/0x18 arch/x86/kvm/vmx.c:7251 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7617 Comm: syz-executor866 Not tainted 4.19.74 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x263/0x507 kernel/panic.c:185 __warn.cold+0x20/0x4a kernel/panic.c:540 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037 RIP: 0010:handle_desc.cold+0x11/0x18 arch/x86/kvm/vmx.c:7251 Code: 00 48 c7 c7 a0 bd 43 87 c6 05 7d 72 20 08 01 e8 a0 17 39 00 e9 2e 8b fb ff e8 c2 b0 4e 00 48 c7 c7 00 be 43 87 e8 8a 17 39 00 <0f> 0b e9 ce 8f fb ff e8 aa b0 4e 00 89 de 48 c7 c7 00 bf 43 87 c6 RSP: 0018:ffff888086c87950 EFLAGS: 00010286 RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8155dbd6 RDI: ffffed1010d90f1c RBP: ffff888086c87960 R08: 0000000000000024 R09: ffffed1015d05079 R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: ffff8880863b0040 R13: 0000000000000000 R14: ffff8880863b0040 R15: 000000000000002f vmx_handle_exit+0x276/0x16b0 arch/x86/kvm/vmx.c:10183 vcpu_enter_guest+0x10ca/0x5ed0 arch/x86/kvm/x86.c:7743 vcpu_run arch/x86/kvm/x86.c:7806 [inline] kvm_arch_vcpu_ioctl_run+0x457/0x16b0 arch/x86/kvm/x86.c:8006 kvm_vcpu_ioctl+0x4dc/0xf90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2617 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:688 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x443819 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 1b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd39ec7a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffd39ec7a70 RCX: 0000000000443819 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 RBP: 0000000000000000 R08: 00000000004010a0 R09: 00000000004010a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004048c0 R13: 0000000000404950 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..