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kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6598 Comm: syz-executor.1 Not tainted 4.19.136-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: 6f 7d 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 70 c4 38 00 48 85 db 75 0d e8 d6 c2 38 00 4c 89 e0 5b 5d 41 5c c3 e8 c9 c2 38 00 <0f> 0b e8 c2 c2 38 00 48 c7 c0 10 50 c7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88808c747a68 EFLAGS: 00010293
RAX: ffff88808e6ca540 RBX: 0077777007700000 RCX: ffffffff8130ec18
RDX: 0000000000000000 RSI: ffffffff8130ec77 RDI: 0000000000000006
RBP: 0077777087700000 R08: 0000000000000000 R09: 0077777087700000
R10: 0000000000000006 R11: 0000000000000000 R12: 0077eef007700000
R13: ffff88808c747ac0 R14: 0000000000000000 R15: 0000000000000282
FS:  00000000011bb940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdb72d2f98 CR3: 0000000089e64000 CR4: 00000000001426e0
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
 kmem_cache_alloc+0x122/0x370 mm/slab.c:3559
 getname_flags+0xce/0x590 fs/namei.c:140
 getname fs/namei.c:211 [inline]
 user_path_mountpoint_at+0x23/0x40 fs/namei.c:2748
 ksys_umount+0x156/0x1070 fs/namespace.c:1645
 __do_sys_umount fs/namespace.c:1671 [inline]
 __se_sys_umount fs/namespace.c:1669 [inline]
 __x64_sys_umount+0x50/0x70 fs/namespace.c:1669
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45f707
Code: 64 89 04 25 d0 02 00 00 58 5f ff d0 48 89 c7 e8 2f be ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 cd 8b fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffdb72d2f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000017b7af RCX: 000000000045f707
RDX: 000000000000000c RSI: 0000000000000002 RDI: 00007ffdb72d40d0
RBP: 00000000000014df R08: 0000000000000000 R09: 00000000011bb940
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb72d40d0
R13: 00007ffdb72d40c0 R14: 0000000000000000 R15: 00007ffdb72d40d0
Modules linked in:
---[ end trace 3132a9b15e461e57 ]---
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27
Code: 6f 7d 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 70 c4 38 00 48 85 db 75 0d e8 d6 c2 38 00 4c 89 e0 5b 5d 41 5c c3 e8 c9 c2 38 00 <0f> 0b e8 c2 c2 38 00 48 c7 c0 10 50 c7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88808c747a68 EFLAGS: 00010293
RAX: ffff88808e6ca540 RBX: 0077777007700000 RCX: ffffffff8130ec18
RDX: 0000000000000000 RSI: ffffffff8130ec77 RDI: 0000000000000006
RBP: 0077777087700000 R08: 0000000000000000 R09: 0077777087700000
R10: 0000000000000006 R11: 0000000000000000 R12: 0077eef007700000
R13: ffff88808c747ac0 R14: 0000000000000000 R15: 0000000000000282
FS:  00000000011bb940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdb72d2f98 CR3: 0000000089e64000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400