------------[ cut here ]------------
WARNING: CPU: 0 PID: 3326 at fs/read_write.c:517 __kernel_write+0x8e5/0xa60 fs/read_write.c:517
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3326 Comm: kworker/0:3 Not tainted 5.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events p9_write_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1f0/0x31e lib/dump_stack.c:118
 panic+0x264/0x7a0 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:540
RIP: 0010:__kernel_write+0x8e5/0xa60 fs/read_write.c:517
Code: c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 f3 da f6 ff 49 89 1c 24 e9 f8 f8 ff ff e8 75 cb b7 ff e9 ee f8 ff ff e8 6b cb b7 ff <0f> 0b 49 c7 c6 f7 ff ff ff e9 81 fc ff ff 44 89 f9 80 e1 07 80 c1
RSP: 0018:ffffc90008befb20 EFLAGS: 00010293
RAX: ffffffff81bcc6d5 RBX: 000000000008001d RCX: ffff888025b904c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff11011337ab0 R08: ffffffff81bcbe57 R09: ffffed100a0b4239
R10: ffffed100a0b4239 R11: 0000000000000000 R12: 0000000000000015
R13: ffff8880899bd618 R14: ffff8880899bd500 R15: ffff8880899bd584
 kernel_write+0x114/0x1e0 fs/read_write.c:552
 p9_fd_write net/9p/trans_fd.c:424 [inline]
 p9_write_work+0x588/0xcc0 net/9p/trans_fd.c:475
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293
Kernel Offset: disabled
Rebooting in 86400 seconds..