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: 'rx-0' (00000000f0ca901c): kobject_cleanup, parent 00000000916cb1ef CPU: 0 PID: 19868 Comm: syz-executor5 Not tainted 4.20.0-rc7+ #382 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'rx-0' (00000000f0ca901c): auto cleanup 'remove' event 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+0x1dc2/0x3820 fs/fuse/dev.c:1919 Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 e9 17 00 00 49 8b 9d 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 8f RSP: 0018:ffff888151da74b8 EFLAGS: 00010247 kobject: 'rx-0' (00000000f0ca901c): kobject_uevent_env RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005dee000 RDX: 0000000000000000 RSI: ffffffff828765b3 RDI: 0000000000000004 RBP: ffff888151da7a50 R08: ffff8881bb8a4380 R09: ffffed10310a07bd R10: ffffed10310a07bd R11: ffff888188503deb R12: 0000000000000000 R13: ffff888188503dc8 R14: 0000000000000000 R15: 0000000000000030 FS: 00007fc541e31700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 kobject: 'rx-0' (00000000f0ca901c): kobject_uevent_env: uevent_suppress caused the event to drop! CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001b7a4c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'rx-0' (00000000f0ca901c): auto cleanup kobject_del kobject: 'rx-0' (00000000f0ca901c): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000cfb98d68): kobject_cleanup, parent 00000000916cb1ef fuse_dev_write+0x19a/0x240 fs/fuse/dev.c:2003 kobject: 'tx-0' (00000000cfb98d68): auto cleanup 'remove' event call_write_iter include/linux/fs.h:1857 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 kobject: 'tx-0' (00000000cfb98d68): kobject_uevent_env vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 kobject: 'tx-0' (00000000cfb98d68): kobject_uevent_env: uevent_suppress caused the event to drop! __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+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'tx-0' (00000000cfb98d68): auto cleanup kobject_del entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457669 Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc541e30c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669 RDX: 0000000000000030 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc541e316d4 R13: 00000000004c5c45 R14: 00000000004da548 R15: 00000000ffffffff kobject: 'tx-0' (00000000cfb98d68): calling ktype release Modules linked in: ---[ end trace a07c550a234a00e5 ]--- kobject: 'loop3' (00000000ad823f98): kobject_uevent_env 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+0x1dc2/0x3820 fs/fuse/dev.c:1919 kobject: 'loop3' (00000000ad823f98): fill_kobj_path: path = '/devices/virtual/block/loop3' Code: 00 48 c1 e0 2a 80 3c 02 00 0f 85 e9 17 00 00 49 8b 9d 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 8f kobject: 'tx-0': free name RSP: 0018:ffff888151da74b8 EFLAGS: 00010247 kobject: 'queues' (00000000916cb1ef): kobject_cleanup, parent (null) RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005dee000 kobject: 'queues' (00000000916cb1ef): calling ktype release RDX: 0000000000000000 RSI: ffffffff828765b3 RDI: 0000000000000004 kobject: 'queues' (00000000916cb1ef): kset_release kobject: 'kvm' (000000007be97d79): kobject_uevent_env kobject: 'queues': free name RBP: ffff888151da7a50 R08: ffff8881bb8a4380 R09: ffffed10310a07bd kobject: 'loop2' (000000009f3184bf): kobject_uevent_env R10: ffffed10310a07bd R11: ffff888188503deb R12: 0000000000000000 kobject: 'loop2' (000000009f3184bf): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000007be97d79): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (0000000037c7f377): kobject_uevent_env kobject: 'tunl0' (00000000cf9a190d): kobject_uevent_env kobject: 'loop1' (0000000037c7f377): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tunl0' (00000000cf9a190d): kobject_uevent_env: uevent_suppress caused the event to drop! R13: ffff888188503dc8 R14: 0000000000000000 R15: 0000000000000030 kobject: 'kvm' (000000007be97d79): kobject_uevent_env kobject: 'kvm' (000000007be97d79): kobject_uevent_env kobject: 'kvm' (000000007be97d79): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'tunl0' (00000000cf9a190d): kobject_cleanup, parent (null) kobject: 'kvm' (000000007be97d79): fill_kobj_path: path = '/devices/virtual/misc/kvm' FS: 00007fc541e31700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop2' (000000009f3184bf): kobject_uevent_env CR2: 00007ffeb05117ac CR3: 00000001b7a4c000 CR4: 00000000001426f0 kobject: 'tunl0' (00000000cf9a190d): auto cleanup 'remove' event DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'tunl0' (00000000cf9a190d): kobject_uevent_env kobject: 'tunl0' (00000000cf9a190d): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tunl0' (00000000cf9a190d): calling ktype release kobject: 'tunl0': free name kobject: 'loop2' (000000009f3184bf): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (000000007be97d79): kobject_uevent_env kobject: 'kvm' (000000007be97d79): fill_kobj_path: path = '/devices/virtual/misc/kvm' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400