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BUG: KASAN: stack-out-of-bounds in pgd_val arch/x86/include/asm/paravirt.h:414 [inline]
BUG: KASAN: stack-out-of-bounds in p4d_page_vaddr arch/x86/include/asm/pgtable.h:895 [inline]
BUG: KASAN: stack-out-of-bounds in pud_offset arch/x86/include/asm/pgtable.h:907 [inline]
BUG: KASAN: stack-out-of-bounds in vmalloc_fault+0x6d0/0x770 arch/x86/mm/fault.c:397
Read of size 8 at addr ffff8881da96cff8 by task kworker/u4:13/26141
PANIC: double fault, error_code: 0x0
CPU: 1 PID: 26141 Comm: kworker/u4:13 Not tainted 4.20.0-rc6+ #351
CPU: 0 PID: 8108 Comm: syz-executor2 Not tainted 4.20.0-rc6+ #351
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:match_held_lock+0x34/0x8d0 kernel/locking/lockdep.c:3401
Workqueue: cleanup_net (netns)
Code: 55 48 89 e5 41 57 41 56 4c 8d 75 d8 41 55 49 89 fd 48 83 c7 10 41 54 53 48 8d 9d 38 ff ff ff 48 c1 eb 03 48 81 ec c8 00 00 00 <48> c7 85 38 ff ff ff b3 8a b5 41 48 c7 85 40 ff ff ff 07 c8 11 89
Call Trace:
RSP: 0018:ffff8881d9bfdfd0 EFLAGS: 00010082
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
RAX: 0000000000000000 RBX: 1ffff1103b37fbff RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8959bf40 RDI: ffff8881bbda89d0
RBP: ffff8881d9bfe0c0 R08: ffff8881bbda8140 R09: ffffed103b5c5b5f
R10: ffffed103b5c5b5f R11: ffff8881dae2dafb R12: ffff8881bbda8140
R13: ffff8881bbda89c0 R14: ffff8881d9bfe098 R15: 0000000000000000
FS: 00007fde99284700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000
kasan: CONFIG_KASAN_INLINE enabled
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8881d9bfdfc8 CR3: 00000001d8728000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kasan: GPF could be caused by NULL-ptr deref or user memory access
Call Trace:
general protection fault: 0000 [#1] PREEMPT SMP KASAN