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
CPU: 0 PID: 7555 Comm: syz-executor1 Not tainted 5.0.0-rc3+ #36
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:ffff888056b876d8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008004000
RDX: 0000000000000000 RSI: ffffffff828b9dfc RDI: 0000000000000004
RBP: ffff888056b87aa8 R08: ffff88809562a700 R09: ffffed100b6cffbe
R10: ffffed100b6cffbd R11: ffff88805b67fdeb R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff88805b67fdc8
FS:  00007f62c67f2700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3be859c000 CR3: 0000000093fa8000 CR4: 00000000001406f0
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: 0033:0x458099
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:00007f62c67f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099
RDX: 0000000000000030 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f62c67f26d4
R13: 00000000004c6efc R14: 00000000004dc520 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop0' (00000000620e829e): kobject_uevent_env
---[ end trace 254ba5dedc0ad7d9 ]---
kobject: 'loop0' (00000000620e829e): fill_kobj_path: path = '/devices/virtual/block/loop0'
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: '0:59' (000000003766c5b9): kobject_uevent_env
RSP: 0018:ffff888056b876d8 EFLAGS: 00010247
kobject: '0:59' (000000003766c5b9): fill_kobj_path: path = '/devices/virtual/bdi/0:59'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008004000
kobject: '0:59' (000000003766c5b9): kobject_cleanup, parent           (null)
RDX: 0000000000000000 RSI: ffffffff828b9dfc RDI: 0000000000000004
RBP: ffff888056b87aa8 R08: ffff88809562a700 R09: ffffed100b6cffbe
R10: ffffed100b6cffbd R11: ffff88805b67fdeb R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff88805b67fdc8
kobject: '0:59' (000000003766c5b9): calling ktype release
FS:  00007f62c67f2700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
kobject: '0:59': free name
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000104a318 CR3: 0000000093fa8000 CR4: 00000000001406e0
kobject: 'loop0' (00000000620e829e): kobject_uevent_env