audit: type=1800 audit(1590325021.627:403): pid=16560 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=17446 res=0 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 6394 Comm: syz-executor.3 Not tainted 4.14.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809a2b6280 task.stack: ffff88806f910000 audit: type=1800 audit(1590325021.877:404): pid=16574 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=17435 res=0 RIP: 0010:__phys_addr+0x80/0xe0 arch/x86/mm/physaddr.c:27 audit: type=1800 audit(1590325021.877:405): pid=16574 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=17435 res=0 RSP: 0018:ffff88806f917d00 EFLAGS: 00010297 RAX: ffff88809a2b6280 RBX: 0007070707070700 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88809a2b6b08 RDI: 0007070707070700 RBP: 0007070787070700 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00077e8707070700 R13: 0007070707070700 R14: ffff88806f917d60 R15: 0000000000000000 FS: 00000000020ba940(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000073e914 CR3: 000000006f8e0000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: XFS (loop5): Mounting V4 Filesystem 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 XFS (loop5): totally zeroed log 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 do_sys_open+0x202/0x3e0 fs/open.c:1075 XFS (loop5): failed to read root inode do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x416800 RSP: 002b:00007ffcb4d04bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00000000000e1811 RCX: 0000000000416800 RDX: 00007ffcb4d04c4a RSI: 0000000000000002 RDI: 00007ffcb4d04c40 RBP: 0000000000000f65 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb4d04bf0 R14: 00000000000e16ef R15: 00007ffcb4d04c00 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: ffff88806f917d00 ---[ end trace 393548f36c911858 ]---