general protection fault, probably for non-canonical address 0xf4343e0010fc004e: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xa1a2100087e00270-0xa1a2100087e00277]
CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.9.0-rc1-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:ffffc90000007e40 EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: ffff888058000010 RCX: 0000000000000001
RDX: 1434420010fc004e RSI: ffffffff8189c6be RDI: a1a2100087e00275
RBP: a1a2100087e0025d R08: 0000000000000000 R09: ffffffff8ce329ff
R10: fffffbfff19c653f R11: 0000000000000000 R12: ffffc90000007ed0
R13: ffff888058000000 R14: 0000000000000000 R15: ffff8880a97cc580
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001590004 CR3: 0000000094ee2000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_do_batch kernel/rcu/tree.c:2428 [inline]
 rcu_core+0x5c7/0x1190 kernel/rcu/tree.c:2656
 __do_softirq+0x2ed/0xab4 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+0x1f3/0x230 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:__rcu_read_unlock+0x66/0x580 kernel/rcu/tree_plugin.h:394
Code: ad 78 03 00 00 01 75 3b 48 8d bd 7c 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 <83> c0 03 38 d0 7c 08 84 d2 0f 85 19 01 00 00 8b 85 7c 03 00 00 85
RSP: 0018:ffffc90000dd7c48 EFLAGS: 00000202
RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff87ea7cb8
RDX: 0000000000000000 RSI: ffffffff87ea79c6 RDI: ffff8880a97cc8fc
RBP: ffff8880a97cc580 R08: 0000000000000000 R09: ffffffff8ce329e7
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000165
 rcu_read_unlock include/linux/rcupdate.h:687 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:411 [inline]
 batadv_nc_worker+0x78b/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 16e9f4c129447a20 ]---
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:ffffc90000007e40 EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: ffff888058000010 RCX: 0000000000000001
RDX: 1434420010fc004e RSI: ffffffff8189c6be RDI: a1a2100087e00275
RBP: a1a2100087e0025d R08: 0000000000000000 R09: ffffffff8ce329ff
R10: fffffbfff19c653f R11: 0000000000000000 R12: ffffc90000007ed0
R13: ffff888058000000 R14: 0000000000000000 R15: ffff8880a97cc580
FS:  0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001590004 CR3: 0000000009c8d000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400