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: 560 Comm: syz-executor2 Not tainted 4.20.0+ #2
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:ffff88809340f6d8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009df9000
RDX: 0000000000000000 RSI: ffffffff828a68ac RDI: 0000000000000004
RBP: ffff88809340faa8 R08: ffff88809138c000 R09: ffffed10141a90c2
R10: ffffed10141a90c1 R11: ffff8880a0d4860b R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff8880a0d485e8
FS:  00007f4b8a891700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3911bdb9de CR3: 00000000971a4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
netlink: 104 bytes leftover after parsing attributes in process `syz-executor0'.
Call Trace:
kobject: 'loop5' (00000000bd53b923): kobject_uevent_env
 fuse_dev_write+0x191/0x240 fs/fuse/dev.c:2003
kobject: 'loop5' (00000000bd53b923): fill_kobj_path: path = '/devices/virtual/block/loop5'
 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:00007f4b8a890c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000030 RSI: 0000000020000040 RDI: 0000000000000003
kobject: 'loop3' (00000000d326d8de): kobject_uevent_env
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4b8a8916d4
R13: 00000000004c6af4 R14: 00000000004dbd70 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop3' (00000000d326d8de): fill_kobj_path: path = '/devices/virtual/block/loop3'
---[ end trace 7f9f8eeb6404414c ]---
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:ffff88809340f6d8 EFLAGS: 00010247
kobject: 'loop0' (000000005cfe23e8): kobject_uevent_env
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009df9000
kobject: 'loop0' (000000005cfe23e8): fill_kobj_path: path = '/devices/virtual/block/loop0'
RDX: 0000000000000000 RSI: ffffffff828a68ac RDI: 0000000000000004
kobject: 'loop5' (00000000bd53b923): kobject_uevent_env
RBP: ffff88809340faa8 R08: ffff88809138c000 R09: ffffed10141a90c2
kobject: 'loop5' (00000000bd53b923): fill_kobj_path: path = '/devices/virtual/block/loop5'
R10: ffffed10141a90c1 R11: ffff8880a0d4860b R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000030 R15: ffff8880a0d485e8
FS:  00007f4b8a891700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
kobject: 'batman_adv' (00000000c00caf13): kobject_uevent_env
kobject: '0:49' (000000007dc3baf6): kobject_add_internal: parent: 'bdi', set: 'devices'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'batman_adv' (00000000c00caf13): kobject_uevent_env: filter function caused the event to drop!
kobject: '0:49' (000000007dc3baf6): kobject_uevent_env
kobject: 'batman_adv' (00000000c00caf13): kobject_cleanup, parent           (null)
CR2: 0000000000625208 CR3: 00000000971a4000 CR4: 00000000001406f0
kobject: 'batman_adv' (00000000c00caf13): calling ktype release
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: (00000000c00caf13): dynamic_kobj_release
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: '0:49' (000000007dc3baf6): fill_kobj_path: path = '/devices/virtual/bdi/0:49'