==================================================================
BUG: KASAN: stack-out-of-bounds in __anon_vma_interval_tree_insert mm/interval_tree.c:72 [inline]
BUG: KASAN: stack-out-of-bounds in anon_vma_interval_tree_insert+0x2a0/0x300 mm/interval_tree.c:83
PANIC: double fault, error_code: 0x0
Read of size 8 at addr ffff8801b8e10cf8 by task udevd/2761
CPU: 0 PID: 13479 Comm: syz-executor5 Not tainted 4.18.0-rc3+ #50

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
CPU: 1 PID: 2761 Comm: udevd Not tainted 4.18.0-rc3+ #50
RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Code: 
Call Trace:
41 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
57 
41 
89 cf 
41 
56 
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
41 
55 
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
49 
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
89 fd 
 __anon_vma_interval_tree_insert mm/interval_tree.c:72 [inline]
 anon_vma_interval_tree_insert+0x2a0/0x300 mm/interval_tree.c:83
41 
 anon_vma_chain_link mm/rmap.c:143 [inline]
 anon_vma_clone+0x2f7/0x740 mm/rmap.c:278
54 45 
89 cc 
53 
65 
 anon_vma_fork+0xf0/0x960 mm/rmap.c:331
4c 
8b 
34 
25 
40 
 dup_mmap kernel/fork.c:475 [inline]
 dup_mm kernel/fork.c:1243 [inline]
 copy_mm kernel/fork.c:1297 [inline]
 copy_process.part.40+0x4fed/0x7220 kernel/fork.c:1803
ee 01 
00 
48 
83 
e4 f0 
48 
81 
ec 60 
03 
00 00 
48 8b 
45 
10 <89> 
94 
24 80 
00 
00 00 
48 ba 
00 
00 00 
00 
00 
fc ff 
df 
48 
89 84 
24 98 
RSP: 0018:ffff8801b78a2df0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 1ffff10036f1463a RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620
RBP: ffff8801b78a3178 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8801b8e3fbe0 R11: ffff8801d695883b R12: 0000000000000000
R13: ffffffff88f92620 R14: ffff8801d69580c0 R15: 0000000000000002
FS:  0000000002205940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8801b78a2de8 CR3: 00000001be577000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace: