------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 3644 Comm: systemd-udevd Not tainted 4.14.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808d006140 task.stack: ffff88808d008000 RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: 0018:ffff88808d00fbd0 EFLAGS: 00010297 RAX: ffff88808d006140 RBX: 0000000007070000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88808d0069c8 RDI: 0000000007070000 RBP: 0000000087070000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000778007070000 R13: 0000000007070000 R14: ffff88808d00fc30 R15: 0000000000000000 FS: 00007f773adf58c0(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f445ca505e0 CR3: 000000008df34000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:600 [inline] qlink_to_cache+0x5/0x30 mm/kasan/quarantine.c:127 qlist_free_all+0xb6/0x110 mm/kasan/quarantine.c:163 quarantine_reduce+0x140/0x170 mm/kasan/quarantine.c:259 kasan_kmalloc+0x95/0xc0 mm/kasan/kasan.c:536 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550 getname_flags+0xc8/0x550 fs/namei.c:138 user_path_at_empty+0x2a/0x50 fs/namei.c:2631 user_path_at include/linux/namei.h:57 [inline] vfs_statx+0xd1/0x160 fs/stat.c:185 vfs_lstat include/linux/fs.h:3066 [inline] SYSC_newlstat fs/stat.c:350 [inline] SyS_newlstat+0x83/0xe0 fs/stat.c:344 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f7739c68335 RSP: 002b:00007fffdf337e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000555616ebefb0 RCX: 00007f7739c68335 RDX: 00007fffdf337eb0 RSI: 00007fffdf337eb0 RDI: 0000555616ebdfb0 RBP: 00007fffdf337f70 R08: 00007f7739f27248 R09: 0000000000001010 R10: 0000000000000030 R11: 0000000000000246 R12: 0000555616ebdfb0 R13: 0000555616ebdfc4 R14: 0000555616eb3a1d R15: 0000555616eb3a24 Code: c2 7f 04 84 d2 75 26 0f b6 0d b6 5b 48 07 4c 89 e0 48 d3 e8 48 85 c0 75 0d e8 cd 13 31 00 4c 89 e0 5b 5d 41 5c c3 e8 c0 13 31 00 <0f> 0b 48 c7 c7 49 e9 71 88 e8 82 55 5a 00 eb cc e8 ab 13 31 00 RIP: __phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: ffff88808d00fbd0 ---[ end trace 9a48cad5beeba862 ]---