general protection fault, probably for non-canonical address 0xf2cfd5001784006f: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x967ec800bc200378-0x967ec800bc20037f]
CPU: 0 PID: 23350 Comm: kworker/u4:2 Not tainted 5.9.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
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:ffffc90000007e48 EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: ffff88804a800010 RCX: 0000000000000001
RDX: 12cfd9001784006f RSI: ffffffff8189cbbe RDI: 967ec800bc20037c
RBP: 967ec800bc200364 R08: 0000000000000000 R09: ffffffff8d1089f7
R10: fffffbfff1a2113e R11: 0000000000000000 R12: ffffc90000007ed0
R13: ffff88804a800000 R14: 0000000000000000 R15: ffff888057ed20c0
FS:  0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000052e378 CR3: 000000006bb5a000 CR4: 00000000001506f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_do_batch kernel/rcu/tree.c:2428 [inline]
 rcu_core+0x5ca/0x1130 kernel/rcu/tree.c:2656
 __do_softirq+0x1f8/0xb23 kernel/softirq.c:298
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:393 [inline]
 __irq_exit_rcu kernel/softirq.c:423 [inline]
 irq_exit_rcu+0x235/0x280 kernel/softirq.c:435
 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:lock_is_held_type+0xc6/0xf0 kernel/locking/lockdep.c:5073
Code: fe 01 00 8b 82 04 09 00 00 83 e8 01 66 85 c0 89 82 04 09 00 00 75 27 4c 89 ff e8 15 8b 26 f9 48 83 c4 08 44 89 e0 5b 5d 41 5c <41> 5d 41 5e 41 5f c3 45 31 e4 eb c4 41 bc 01 00 00 00 eb e1 0f 0b
RSP: 0018:ffffc90006127b58 EFLAGS: 00000292
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff815c285e
RDX: dffffc0000000000 RSI: ffffffff8a068380 RDI: 0000000000000286
RBP: ffffffff8a068440 R08: 0000000000000000 R09: ffffffff8b5c77cf
R10: fffffbfff16b8ef9 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888057ed29c8 R14: ffff888057ed29f0 R15: 0000000000000286
 lock_is_held include/linux/lockdep.h:267 [inline]
 rcu_read_lock_sched_held+0x3a/0xb0 kernel/rcu/update.c:136
 trace_lock_acquire include/trace/events/lock.h:13 [inline]
 lock_acquire+0x843/0xaf0 kernel/locking/lockdep.c:5003
 rcu_lock_acquire include/linux/rcupdate.h:241 [inline]
 rcu_read_lock include/linux/rcupdate.h:634 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:407 [inline]
 batadv_nc_worker+0x12d/0xe50 net/batman-adv/network-coding.c:718
 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 7f573a3797d352c4 ]---
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:ffffc90000007e48 EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: ffff88804a800010 RCX: 0000000000000001
RDX: 12cfd9001784006f RSI: ffffffff8189cbbe RDI: 967ec800bc20037c
RBP: 967ec800bc200364 R08: 0000000000000000 R09: ffffffff8d1089f7
R10: fffffbfff1a2113e R11: 0000000000000000 R12: ffffc90000007ed0
R13: ffff88804a800000 R14: 0000000000000000 R15: ffff888057ed20c0
FS:  0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000052e378 CR3: 000000006bb5a000 CR4: 00000000001506f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600