------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4702 Comm: systemd-udevd Not tainted 4.19.195-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27
Code: 4f fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 30 22 37 00 48 85 db 75 0d e8 96 20 37 00 4c 89 e0 5b 5d 41 5c c3 e8 89 20 37 00 <0f> 0b e8 82 20 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88809a69fa98 EFLAGS: 00010293
RAX: ffff88809a696100 RBX: 0000070700070700 RCX: ffffffff812b5e48
RDX: 0000000000000000 RSI: ffffffff812b5ea7 RDI: 0000000000000006
RBP: 0000070780070700 R08: 0000000000000000 R09: 0000070780070700
R10: 0000000000000006 R11: 0000000000000000 R12: 00007e8700070700
R13: ffff88809a69faf0 R14: 0000000000000000 R15: 0000000000000286
FS:  00007f6fdb6458c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa9b6d1b718 CR3: 000000009b3eb000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:665 [inline]
 qlink_to_cache mm/kasan/quarantine.c:127 [inline]
 qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163
 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538
 slab_post_alloc_hook mm/slab.h:445 [inline]
 slab_alloc mm/slab.c:3397 [inline]
 kmem_cache_alloc+0x110/0x370 mm/slab.c:3557
 getname_flags+0xce/0x590 fs/namei.c:140
 user_path_at_empty+0x2a/0x50 fs/namei.c:2609
 do_readlinkat+0xcd/0x2f0 fs/stat.c:394
 __do_sys_readlink fs/stat.c:427 [inline]
 __se_sys_readlink fs/stat.c:424 [inline]
 __x64_sys_readlink+0x74/0xb0 fs/stat.c:424
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f6fda4b9087
Code: 73 01 c3 48 8b 0d 11 be 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 59 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 bd 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe383076d8 EFLAGS: 00000293 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00007ffe383077a0 RCX: 00007f6fda4b9087
RDX: 0000000000000200 RSI: 00007ffe38307880 RDI: 00007ffe38307750
RBP: 00007ffe38307c01 R08: 0000000000000001 R09: 0000000000000014
R10: 0000000000000064 R11: 0000000000000293 R12: 00007ffe38307880
R13: 000055c1f9cb7010 R14: 000055c1f9cb70e0 R15: 00007ffe38307750
Modules linked in:
---[ end trace 91b4e6f7343dd91d ]---
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27
Code: 4f fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 30 22 37 00 48 85 db 75 0d e8 96 20 37 00 4c 89 e0 5b 5d 41 5c c3 e8 89 20 37 00 <0f> 0b e8 82 20 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88809a69fa98 EFLAGS: 00010293
RAX: ffff88809a696100 RBX: 0000070700070700 RCX: ffffffff812b5e48
RDX: 0000000000000000 RSI: ffffffff812b5ea7 RDI: 0000000000000006
RBP: 0000070780070700 R08: 0000000000000000 R09: 0000070780070700
R10: 0000000000000006 R11: 0000000000000000 R12: 00007e8700070700
R13: ffff88809a69faf0 R14: 0000000000000000 R15: 0000000000000286
FS:  00007f6fdb6458c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e623f5718 CR3: 000000009b3eb000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400