Node 0 DMA32 free:36656kB min:36384kB low:45480kB high:54576kB active_anon:1799508kB inactive_anon:46264kB active_file:8kB inactive_file:4kB unevictable:14336kB writepending:0kB present:3129332kB managed:2634396kB mlocked:14336kB kernel_stack:12096kB pagetables:25640kB bounce:0kB free_pcp:344kB local_pcp:132kB free_cma:0kB kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access kvm [26210]: vcpu0, guest rIP: 0x14c Hyper-V uhandled wrmsr: 0x40000011 data 0xffffffff00000005 general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 26214 Comm: blkid Not tainted 4.14.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88804dbf62c0 task.stack: ffff8881e6798000 RIP: 0010:do_last fs/namei.c:3269 [inline] RIP: 0010:path_openat+0x20b/0x3db0 fs/namei.c:3569 RSP: 0018:ffff8881e679fb28 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0001020304050608 RDX: 0000000000000000 RSI: 1ffff1103ccf3f56 RDI: 0000000000000004 RBP: ffff8881e679fc80 R08: ffff88804dbf62c0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000003 R12: ffff8881e679fcc0 R13: ffff8881e679fcc0 R14: ffff888096fc02c0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c4422ab000 CR3: 0000000218f7f000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_filp_open+0x18e/0x250 fs/namei.c:3603 do_sys_open+0x2c5/0x430 fs/open.c:1084 SYSC_open fs/open.c:1102 [inline] SyS_open+0x2d/0x40 fs/open.c:1097 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f0fba8aa1a7 RSP: 002b:00007ffd542cae88 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000400f31 RCX: 00007f0fba8aa1a7 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00007f0fba8ae282 RBP: 0000000000000001 R08: 00007f0fbaab5570 R09: 0000000000000000 R10: ffffffffffffffb0 R11: 0000000000000246 R12: 00007f0fbaab5090 R13: 00007f0fbaab4040 R14: 0000000000000000 R15: 00007f0fbaab5570 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 03 30 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 58 48 8d 7b 04 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 RIP: do_last fs/namei.c:3269 [inline] RSP: ffff8881e679fb28 RIP: path_openat+0x20b/0x3db0 fs/namei.c:3569 RSP: ffff8881e679fb28 lowmem_reserve[]: 0 0 0 0 0 kvm_hv_get_msr: 116 callbacks suppressed kvm [26215]: vcpu0, guest rIP: 0x145 Hyper-V unhandled rdmsr: 0x40000074 ---[ end trace c1c662deeca1c3d1 ]--- Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB