==================================================================
BUG: KASAN: slab-out-of-bounds in check_prev_add kernel/locking/lockdep.c:2298 [inline]
BUG: KASAN: slab-out-of-bounds in check_prevs_add kernel/locking/lockdep.c:2418 [inline]
BUG: KASAN: slab-out-of-bounds in validate_chain+0x1a35/0x84f0 kernel/locking/lockdep.c:2800
Write of size 8 at addr ffff8880965a1890 by task syz-executor.1/9897

CPU: 1 PID: 9897 Comm: syz-executor.1 Not tainted 5.2.0-rc6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:

Allocated by task 0:
BUG: unable to handle page fault for address: ffffffff8ad6f630
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8a70067 P4D 8a70067 PUD 8a71063 PMD 0 
Thread overran stack, or stack corrupted
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9897 Comm: syz-executor.1 Not tainted 5.2.0-rc6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:stack_depot_fetch+0x7/0x30 lib/stackdepot.c:201
Code: 44 00 00 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7a b3 fc fd 0f 0b e8 73 b3 fc fd 0f 0b 90 89 f8 25 ff ff 1f 00 <48> 8b 04 c5 30 a6 de 89 c1 ef 11 81 e7 f0 3f 00 00 48 8d 4c 38 18
RSP: 0018:ffff8880965a1300 EFLAGS: 00010006
RAX: 00000000001f0a00 RBX: ffffea0002596800 RCX: 8e6b7fbf9fc36e00
RDX: 0000000000000000 RSI: ffff8880965a1308 RDI: 00000000ffff0a00
RBP: ffff8880965a1340 R08: ffffffff817fec49 R09: ffffed1015d644c6
R10: ffffed1015d644c6 R11: 1ffff11015d644c5 R12: ffff8880aa58f940
R13: ffff8880965a1040 R14: ffff8880965a1890 R15: ffff8880965a0040
FS:  000055555572e940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff8ad6f630 CR3: 00000000a8f81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
CR2: ffffffff8ad6f630
---[ end trace 41c4e1eb19c0439f ]---
RIP: 0010:stack_depot_fetch+0x7/0x30 lib/stackdepot.c:201
Code: 44 00 00 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7a b3 fc fd 0f 0b e8 73 b3 fc fd 0f 0b 90 89 f8 25 ff ff 1f 00 <48> 8b 04 c5 30 a6 de 89 c1 ef 11 81 e7 f0 3f 00 00 48 8d 4c 38 18
RSP: 0018:ffff8880965a1300 EFLAGS: 00010006
RAX: 00000000001f0a00 RBX: ffffea0002596800 RCX: 8e6b7fbf9fc36e00
RDX: 0000000000000000 RSI: ffff8880965a1308 RDI: 00000000ffff0a00
RBP: ffff8880965a1340 R08: ffffffff817fec49 R09: ffffed1015d644c6
R10: ffffed1015d644c6 R11: 1ffff11015d644c5 R12: ffff8880aa58f940
R13: ffff8880965a1040 R14: ffff8880965a1890 R15: ffff8880965a0040
FS:  000055555572e940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff8ad6f630 CR3: 00000000a8f81000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400