netlink: 20 bytes leftover after parsing attributes in process `syz-executor2'.
BUG: unable to handle kernel paging request at ffffe902f205fb38
kobject: 'loop1' (00000000e30a17a7): kobject_uevent_env
#PF error: [WRITE]
PGD 0 P4D 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 26400 Comm: modprobe Not tainted 4.20.0+ #3
kobject: 'loop1' (00000000e30a17a7): fill_kobj_path: path = '/devices/virtual/block/loop1'
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:___cache_free+0x60/0x380 mm/slab.c:3539
Code: 55 89 83 3d 45 70 96 08 01 0f 8f e7 00 00 00 41 8b 47 04 41 39 07 0f 83 97 01 00 00 0f 1f 44 00 00 41 8b 07 8d 50 01 41 89 17 <4d> 89 6c c7 10 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 f4 02
RSP: 0018:ffff888092b3f718 EFLAGS: 00010003
RAX: 000000005e485e00 RBX: 0000000000000282 RCX: ffffffff8139c48a
kobject: 'loop2' (00000000b3ffc920): kobject_uevent_env
RDX: 000000005e485e01 RSI: ffffffff8139c494 RDI: ffffea0002a5c300
RBP: ffff888092b3f778 R08: ffff8880628a4300 R09: ffff8880628a4ba0
R10: ffff8880628a4300 R11: 0000000000000000 R12: ffff8882167dbd80
R13: ffff8880a970ccc0 R14: ffff888092b3f7c8 R15: ffffe8ffffc30b28
kobject: 'loop2' (00000000b3ffc920): fill_kobj_path: path = '/devices/virtual/block/loop2'
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe902f205fb38 CR3: 000000006a626000 CR4: 00000000001406f0
kobject: 'loop1' (00000000e30a17a7): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop1' (00000000e30a17a7): fill_kobj_path: path = '/devices/virtual/block/loop1'
 qlink_free mm/kasan/quarantine.c:147 [inline]
 qlist_free_all+0x85/0x150 mm/kasan/quarantine.c:166
 quarantine_reduce+0x169/0x1a0 mm/kasan/quarantine.c:259
 kasan_kmalloc+0xa0/0xf0 mm/kasan/kasan.c:538
 kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:444 [inline]
 slab_alloc mm/slab.c:3392 [inline]
 kmem_cache_alloc+0x11b/0x700 mm/slab.c:3552
 vm_area_alloc+0x7a/0x1d0 kernel/fork.c:336
 __install_special_mapping+0x32/0x460 mm/mmap.c:3407
 _install_special_mapping+0x3c/0x50 mm/mmap.c:3457
 map_vdso+0x8e/0x130 arch/x86/entry/vdso/vma.c:168
 map_vdso_randomized+0x74/0xb0 arch/x86/entry/vdso/vma.c:249
 arch_setup_additional_pages+0x1d/0x20 arch/x86/entry/vdso/vma.c:294
 load_elf_binary+0x25f8/0x53c0 fs/binfmt_elf.c:1123
 search_binary_handler fs/exec.c:1653 [inline]
 search_binary_handler+0x17f/0x570 fs/exec.c:1631
 exec_binprm fs/exec.c:1695 [inline]
 __do_execve_file.isra.0+0x147f/0x2540 fs/exec.c:1819
 do_execveat_common fs/exec.c:1866 [inline]
 do_execve+0x33/0x40 fs/exec.c:1883
 call_usermodehelper_exec_async+0x6be/0xa50 kernel/umh.c:107
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
CR2: ffffe902f205fb38
---[ end trace 9eb21b32799431e8 ]---
RIP: 0010:___cache_free+0x60/0x380 mm/slab.c:3539
Code: 55 89 83 3d 45 70 96 08 01 0f 8f e7 00 00 00 41 8b 47 04 41 39 07 0f 83 97 01 00 00 0f 1f 44 00 00 41 8b 07 8d 50 01 41 89 17 <4d> 89 6c c7 10 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 f4 02
RSP: 0018:ffff888092b3f718 EFLAGS: 00010003
RAX: 000000005e485e00 RBX: 0000000000000282 RCX: ffffffff8139c48a
RDX: 000000005e485e01 RSI: ffffffff8139c494 RDI: ffffea0002a5c300
RBP: ffff888092b3f778 R08: ffff8880628a4300 R09: ffff8880628a4ba0
R10: ffff8880628a4300 R11: 0000000000000000 R12: ffff8882167dbd80
R13: ffff8880a970ccc0 R14: ffff888092b3f7c8 R15: ffffe8ffffc30b28
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffe902f205fb38 CR3: 000000006a626000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400