------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 3653 Comm: systemd-udevd Not tainted 4.14.193-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808e996380 task.stack: ffff88808e998000 RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: 0018:ffff88808e99fb28 EFLAGS: 00010297 RAX: ffff88808e996380 RBX: 0007070707070700 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88808e996c08 RDI: 0007070707070700 RBP: 0007070787070700 R08: ffffea0007e66000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00077e8707070700 R13: ffff88808e99fb80 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f4d83c008c0(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00cb3c008 CR3: 000000008ea7f000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:612 [inline] qlink_to_cache mm/kasan/quarantine.c:127 [inline] qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163 quarantine_reduce+0x185/0x200 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 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 prepare_creds+0x39/0x490 kernel/cred.c:255 SYSC_faccessat fs/open.c:365 [inline] SyS_faccessat+0x7b/0x680 fs/open.c:353 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f4d82a739c7 RSP: 002b:00007ffeb6ad1678 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00005594b4aeffa0 RCX: 00007f4d82a739c7 RDX: 00746e657665752f RSI: 0000000000000000 RDI: 00007ffeb6ad1680 RBP: 00007ffeb6ad16f0 R08: 000000000000fc21 R09: 0000000000001010 R10: 0000000000000040 R11: 0000000000000246 R12: 00005594b3542856 R13: 00005594b4ae8790 R14: 00007ffeb6ad1680 R15: 00007ffeb6ad17c0 Code: c2 7f 04 84 d2 75 26 0f b6 0d 26 b5 68 07 4c 89 e0 48 d3 e8 48 85 c0 75 0d e8 3d 9f 31 00 4c 89 e0 5b 5d 41 5c c3 e8 30 9f 31 00 <0f> 0b 48 c7 c7 c9 ac 92 88 e8 42 68 5b 00 eb cc e8 1b 9f 31 00 RIP: __phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: ffff88808e99fb28 ---[ end trace ee7d46d2149cffcd ]---