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kernel BUG at fs/ext4/inode.c:2618!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 2209 Comm: kworker/u4:2 Not tainted 4.9.131+ #4
Workqueue: writeback wb_workfn (flush-8:0)
task: ffff8801d2f197c0 task.stack: ffff8801d2568000
RIP: 0010:[<ffffffff816c4f79>]  [<ffffffff816c4f79>] mpage_prepare_extent_to_map+0x719/0x9a0 fs/ext4/inode.c:2618
RSP: 0018:ffff8801d256f308  EFLAGS: 00010293
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=4806 comm=syz-executor2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=4822 comm=syz-executor2
RAX: ffff8801d2f197c0 RBX: ffffea00069f2980 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816c4f79 RDI: ffffea00069f2990
RBP: ffff8801d256f4c8 R08: ffff8801d2f1a070 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8801d256f630
FS:  0000000000000000(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 00000001af27f000 CR4: 00000000001606b0
Stack:
 1ffff1003a4ade70 ffff8801d256f3a0 ffff8801d256f638 ffff8801d256f640
 0000000000000246 0007ffffffffffff ffff8801d41b1c18 000000010000000c
 0000000000001c00 ffff8801d256f3e0 ffff8801d256f648 ffffed003a4adec7
Call Trace:
 [<ffffffff816d590e>] ext4_writepages+0xeee/0x2e00 fs/ext4/inode.c:2780
 [<ffffffff81433d0f>] do_writepages+0xef/0x1d0 mm/page-writeback.c:2331
 [<ffffffff8159eb89>] __writeback_single_inode+0xd9/0x1020 fs/fs-writeback.c:1320
 [<ffffffff8159ff7c>] writeback_sb_inodes+0x4ac/0xe70 fs/fs-writeback.c:1584
 [<ffffffff815a0a3b>] __writeback_inodes_wb+0xfb/0x1e0 fs/fs-writeback.c:1653
 [<ffffffff815a1032>] wb_writeback+0x512/0xbd0 fs/fs-writeback.c:1762
 [<ffffffff815a40fe>] wb_do_writeback fs/fs-writeback.c:1894 [inline]
 [<ffffffff815a40fe>] wb_workfn+0x20e/0xe90 fs/fs-writeback.c:1930
 [<ffffffff81130e81>] process_one_work+0x831/0x1530 kernel/workqueue.c:2092
 [<ffffffff81131c56>] worker_thread+0xd6/0x1140 kernel/workqueue.c:2226
 [<ffffffff811429fd>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff8280399c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Code: fc ff ff 48 89 95 b0 fe ff ff e8 03 66 c5 ff 48 8b 95 b0 fe ff ff 48 8d 42 ff e9 6f ff ff ff e8 ee 65 c5 ff 0f 0b e8 e7 65 c5 ff <0f> 0b 31 c0 89 85 b0 fe ff ff e8 d8 65 c5 ff 8b 85 18 ff ff ff 
RIP  [<ffffffff816c4f79>] mpage_prepare_extent_to_map+0x719/0x9a0 fs/ext4/inode.c:2618
 RSP <ffff8801d256f308>
---[ end trace 080c56094490cde3 ]---