Process accounting resumed
------------[ cut here ]------------
kernel BUG at fs/netfs/iterator.c:248!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 15146 Comm: syz.6.3117 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:netfs_limit_iter+0x100d/0x1100 fs/netfs/iterator.c:248
Code: ff e9 a4 f4 ff ff 48 89 de 48 c7 c7 e0 c5 ab 8e e8 e8 09 74 fe e9 59 f6 ff ff e8 3e e7 b1 ff e9 6f f6 ff ff e8 f4 58 45 ff 90 <0f> 0b e8 9c e6 b1 ff e9 cd f9 ff ff 4c 89 f6 48 c7 c7 60 c6 ab 8e
RSP: 0018:ffffc90006fe7620 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82c3791b
RDX: ffff8880368c0000 RSI: ffffffff82c3884c RDI: ffff8880368c0000
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: 000000007fffffff
R13: 1ffff92000dfceca R14: ffff8880390e51e0 R15: ffff88802aff6940
FS:  0000000000000000(0000) GS:ffff8880d633f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc11c24eddd CR3: 00000000562df000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 netfs_unbuffered_write+0x25d/0x2080 fs/netfs/direct_write.c:128
 netfs_unbuffered_write_iter_locked+0x801/0xab0 fs/netfs/direct_write.c:287
 netfs_unbuffered_write_iter+0x40c/0x710 fs/netfs/direct_write.c:377
 v9fs_file_write_iter+0xbf/0x100 fs/9p/vfs_file.c:409
 __kernel_write_iter+0x2ac/0x920 fs/read_write.c:621
 __kernel_write+0xf6/0x140 fs/read_write.c:641
 acct_write_process+0x222/0x7a0 kernel/acct.c:534
 do_acct_process kernel/acct.c:548 [inline]
 slow_acct_process kernel/acct.c:602 [inline]
 acct_process+0x561/0x6f0 kernel/acct.c:626
 do_exit+0x17c4/0x2b60 kernel/exit.c:967
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1118
 get_signal+0x1ec7/0x21e0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x91/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x67c/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9b3019c799
Code: Unable to access opcode bytes at 0x7f9b3019c76f.
RSP: 002b:00007f9b30fa20e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9b30415fa8 RCX: 00007f9b3019c799
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9b30415fa8
RBP: 00007f9b30415fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9b30416038 R14: 00007ffc17ccd660 R15: 00007ffc17ccd748
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:netfs_limit_iter+0x100d/0x1100 fs/netfs/iterator.c:248
Code: ff e9 a4 f4 ff ff 48 89 de 48 c7 c7 e0 c5 ab 8e e8 e8 09 74 fe e9 59 f6 ff ff e8 3e e7 b1 ff e9 6f f6 ff ff e8 f4 58 45 ff 90 <0f> 0b e8 9c e6 b1 ff e9 cd f9 ff ff 4c 89 f6 48 c7 c7 60 c6 ab 8e
RSP: 0018:ffffc90006fe7620 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82c3791b
RDX: ffff8880368c0000 RSI: ffffffff82c3884c RDI: ffff8880368c0000
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000005
R10: 0000000000000003 R11: 0000000000000000 R12: 000000007fffffff
R13: 1ffff92000dfceca R14: ffff8880390e51e0 R15: ffff88802aff6940
FS:  0000000000000000(0000) GS:ffff8880d633f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc11c24eddd CR3: 0000000038225000 CR4: 0000000000352ef0