Not allocated shadow for addr ffff880100000000 (page ffffea0006000000) Attempted to access 32 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1091! invalid opcode: 0000 [#1] SMP CPU: 0 PID: 8397 Comm: syz-executor0 Not tainted 4.19.0-rc7+ #69 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089 Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 1c be 57 8b 31 c0 4c RSP: 0018:ffff88012740f2d0 EFLAGS: 00010046 libceph: parse_ips bad ip '[d::]: llb' RAX: 000000000000001c RBX: 0000000000000000 RCX: 5dc1f4ab96451d00 RDX: 0000000000000000 RSI: 0000000000002091 RDI: 0000000000002092 RBP: ffff88012740f300 R08: 0000000000000000 R09: ffff88021fc38f50 R10: 0000000000000000 R11: ffffffff8625e390 R12: 0000000000000001 R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f59f31cd700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c000 CR3: 000000012fbf3000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_internal_memset_shadow+0x5c/0xd0 mm/kmsan/kmsan.c:163 __msan_memset+0x7f/0xf0 mm/kmsan/kmsan_instr.c:316 slab_alloc_node mm/slub.c:2725 [inline] slab_alloc mm/slub.c:2735 [inline] kmem_cache_alloc+0xa96/0xd50 mm/slub.c:2740 kmem_cache_zalloc include/linux/slab.h:697 [inline] mmu_topup_memory_cache arch/x86/kvm/mmu.c:933 [inline] mmu_topup_memory_caches+0x109/0x880 arch/x86/kvm/mmu.c:979 kvm_mmu_load+0xb5/0x3460 arch/x86/kvm/mmu.c:4968 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest arch/x86/kvm/x86.c:7532 [inline] vcpu_run arch/x86/kvm/x86.c:7730 [inline] kvm_arch_vcpu_ioctl_run+0x87bf/0x10ab0 arch/x86/kvm/x86.c:7930 kvm_vcpu_ioctl+0x11a7/0x20b0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0xf28/0x2ca0 fs/ioctl.c:687 ksys_ioctl fs/ioctl.c:702 [inline] __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707 do_syscall_64+0xbe/0x100 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f59f31ccc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f59f31cd6d4 R13: 00000000004c0027 R14: 00000000004d0108 R15: 00000000ffffffff Modules linked in: ---[ end trace 5a120f110ca38c8c ]--- RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089 Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 1c be 57 8b 31 c0 4c RSP: 0018:ffff88012740f2d0 EFLAGS: 00010046 RAX: 000000000000001c RBX: 0000000000000000 RCX: 5dc1f4ab96451d00 RDX: 0000000000000000 RSI: 0000000000002091 RDI: 0000000000002092 RBP: ffff88012740f300 R08: 0000000000000000 R09: ffff88021fc38f50 R10: 0000000000000000 R11: ffffffff8625e390 R12: 0000000000000001 R13: ffff880100000000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f59f31cd700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c000 CR3: 000000012fbf3000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400