dccp_check_seqno: Step 6 failed for RESET packet, (LSWL(81064570144458) <= P.seqno(0) <= S.SWH(81064570144532)) and (P.ackno exists or LAWL(138377346435634) <= P.ackno(138377346435635) <= S.AWH(138377346435635), sending SYNC...
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kobject: 'lo' (000000004327afba): kobject_uevent_env
CPU: 0 PID: 11304 Comm: syz-executor1 Not tainted 4.20.0+ #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fuse_retrieve fs/fuse/dev.c:1745 [inline]
RIP: 0010:fuse_notify_retrieve fs/fuse/dev.c:1807 [inline]
RIP: 0010:fuse_notify fs/fuse/dev.c:1840 [inline]
RIP: 0010:fuse_dev_do_write+0x1e44/0x3780 fs/fuse/dev.c:1919
Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 d5 18 00 00 49 8b 9f 58 01 00 00 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 39
RSP: 0018:ffff88804dd876d8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007def000
RDX: 0000000000000000 RSI: ffffffff828b822c RDI: 0000000000000004
RBP: ffff88804dd87aa8 R08: ffff888055b7c3c0 R09: ffffed1013d5fd40
R10: ffffed1013d5fd3f R11: ffff88809eafe9fb R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff88809eafe9d8
FS:  00007ff77b5e6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2be29000 CR3: 000000008a621000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fuse_dev_write+0x191/0x240 fs/fuse/dev.c:2003
 call_write_iter include/linux/fs.h:1862 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x764/0xb40 fs/read_write.c:487
 vfs_write+0x20c/0x580 fs/read_write.c:549
 ksys_write+0x105/0x260 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff77b5e5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000030 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff77b5e66d4
R13: 00000000004c6c65 R14: 00000000004dc0b8 R15: 00000000ffffffff
Modules linked in:
kobject: 'lo' (000000004327afba): kobject_uevent_env: uevent_suppress caused the event to drop!
---[ end trace ef63ae9db1034fd1 ]---
dccp_close: ABORT with 1061 bytes unread
RIP: 0010:fuse_retrieve fs/fuse/dev.c:1745 [inline]
RIP: 0010:fuse_notify_retrieve fs/fuse/dev.c:1807 [inline]
RIP: 0010:fuse_notify fs/fuse/dev.c:1840 [inline]
RIP: 0010:fuse_dev_do_write+0x1e44/0x3780 fs/fuse/dev.c:1919
Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 d5 18 00 00 49 8b 9f 58 01 00 00 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 39
kobject: 'lo' (000000004327afba): kobject_cleanup, parent           (null)
RSP: 0018:ffff88804dd876d8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007def000
RDX: 0000000000000000 RSI: ffffffff828b822c RDI: 0000000000000004
RBP: ffff88804dd87aa8 R08: ffff888055b7c3c0 R09: ffffed1013d5fd40
R10: ffffed1013d5fd3f R11: ffff88809eafe9fb R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff88809eafe9d8
kobject: 'loop0' (000000001f69fbc3): kobject_uevent_env
FS:  00007ff77b5e6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
kobject: 'lo' (000000004327afba): auto cleanup 'remove' event
kobject: 'lo' (000000004327afba): kobject_uevent_env
kobject: 'lo' (000000004327afba): kobject_uevent_env: uevent_suppress caused the event to drop!
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'lo' (000000004327afba): calling ktype release
kobject: 'loop0' (000000001f69fbc3): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'lo': free name
CR2: 0000001b2c921000 CR3: 000000008a621000 CR4: 00000000001426f0
kobject: 'loop4' (00000000545fc546): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop4' (00000000545fc546): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: '0:57' (00000000e3689da8): kobject_uevent_env
kobject: '0:57' (00000000e3689da8): fill_kobj_path: path = '/devices/virtual/bdi/0:57'
kobject: '0:57' (00000000e3689da8): kobject_cleanup, parent           (null)
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: '0:57' (00000000e3689da8): calling ktype release
kobject: 'loop2' (000000007e7bc304): kobject_uevent_env
kobject: '0:57': free name