audit: type=1804 audit(1586486945.456:93): pid=15506 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir011960712/syzkaller.npO3qf/77/bus" dev="sda1" ino=16172 res=1
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 15504 Comm: syz-executor.4 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88803f88e600 task.stack: ffff8882111e8000
RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27
RSP: 0018:ffff8882111ef8d8 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 66c0cc3018c06660 RCX: ffffc9000aaac000
RDX: 0000000000040000 RSI: ffffffff8129bb20 RDI: 66c0cc3018c06660
RBP: 66c0cc3098c06660 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 66c143b018c06660
R13: ffff8882111ef930 R14: 0000000000000000 R15: 0000000000000282
FS:  00007f3493d5c700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200ac000 CR3: 0000000095523000 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 mm/kasan/quarantine.c:127 [inline]
 qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163
 quarantine_reduce+0x140/0x170 mm/kasan/quarantine.c:259
 kasan_kmalloc+0x95/0xe0 mm/kasan/kasan.c:536
 slab_post_alloc_hook mm/slab.h:442 [inline]
 slab_alloc mm/slab.c:3390 [inline]
 __do_kmalloc mm/slab.c:3718 [inline]
 __kmalloc+0x145/0x7c0 mm/slab.c:3729
 kmalloc_array include/linux/slab.h:607 [inline]
 kcalloc include/linux/slab.h:618 [inline]
 iter_file_splice_write+0x143/0xa10 fs/splice.c:692
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x27e/0x730 fs/splice.c:973
 do_splice_direct+0x164/0x210 fs/splice.c:1061
 do_sendfile+0x469/0xaf0 fs/read_write.c:1441
 SYSC_sendfile64 fs/read_write.c:1502 [inline]
 SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007f3493d5bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f3493d5c6d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 000000000076c040 R08: 0000000000000000 R09: 0000000000000000
R10: 00008400fffffffa R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008d4 R14: 00000000004cb7c6 R15: 000000000076c04c
Code: c2 7f 04 84 d2 75 26 0f b6 0d 06 51 68 07 4c 89 e0 48 d3 e8 48 85 c0 75 0d e8 8d 8b 30 00 4c 89 e0 5b 5d 41 5c c3 e8 80 8b 30 00 <0f> 0b 48 c7 c7 09 0c 92 88 e8 62 dd 59 00 eb cc e8 6b 8b 30 00 
RIP: __phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 RSP: ffff8882111ef8d8
---[ end trace 2b206664b290f975 ]---