general protection fault, probably for non-canonical address 0xf4ee340017a80059: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xa771c000bd4002c8-0xa771c000bd4002cf]
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.9.0-rc6-next-20200923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:htab_elem_free kernel/bpf/hashtab.c:769 [inline]
RIP: 0010:htab_elem_free_rcu+0x4a/0x110 kernel/bpf/hashtab.c:779
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b f8 48 8d 7d 18 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 82 00 00 00 44 8b 65 18 bf 05
RSP: 0018:ffffc90000d7fcd8 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: ffff88803f000010 RCX: 00000000ef8e16aa
RDX: 14ee380017a80059 RSI: ffffffff818882be RDI: a771c000bd4002ca
RBP: a771c000bd4002b2 R08: 0000000000000000 R09: ffffffff8d7189ff
R10: fffffbfff1ae313f R11: 0000000000000000 R12: ffffc90000d7fd60
R13: ffff88803f000000 R14: 0000000000000000 R15: ffff8880a9660440
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016aad50 CR3: 0000000096410000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_do_batch kernel/rcu/tree.c:2480 [inline]
 rcu_core+0x645/0x1240 kernel/rcu/tree.c:2714
 __do_softirq+0x203/0xab6 kernel/softirq.c:298
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0xcf/0x170 kernel/softirq.c:645
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
 kthread+0x3af/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Modules linked in:

---[ end trace 0b2ede3e7c8dcbd6 ]---
RIP: 0010:htab_elem_free kernel/bpf/hashtab.c:769 [inline]
RIP: 0010:htab_elem_free_rcu+0x4a/0x110 kernel/bpf/hashtab.c:779
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b f8 48 8d 7d 18 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 82 00 00 00 44 8b 65 18 bf 05
RSP: 0018:ffffc90000d7fcd8 EFLAGS: 00010a06

RAX: dffffc0000000000 RBX: ffff88803f000010 RCX: 00000000ef8e16aa
RDX: 14ee380017a80059 RSI: ffffffff818882be RDI: a771c000bd4002ca
RBP: a771c000bd4002b2 R08: 0000000000000000 R09: ffffffff8d7189ff
R10: fffffbfff1ae313f R11: 0000000000000000 R12: ffffc90000d7fd60
R13: ffff88803f000000 R14: 0000000000000000 R15: ffff8880a9660440
FS:  0000000000000000(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016aad50 CR3: 0000000096410000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400