------------[ cut here ]------------ WARNING: CPU: 0 PID: 8 at net/core/gen_stats.c:157 gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157 Modules linked in: CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157 Code: 0f 84 69 01 00 00 e8 52 a1 59 fa 31 ff 65 8b 2d b9 ab e4 78 81 e5 00 01 ff 00 89 ee e8 7c a8 59 fa 85 ed 74 10 e8 33 a1 59 fa <0f> 0b 4d 85 f6 0f 84 70 01 00 00 49 c7 c7 e4 ae 6e 8d bd ff ff ff RSP: 0018:ffffc90000007b98 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888036b0fc50 RCX: 0000000000000100 RDX: ffff888010e65580 RSI: ffffffff871d445d RDI: 0000000000000003 RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000003 R10: ffffffff871d4454 R11: 1ffffffff1ea83b9 R12: ffff888038aa2208 R13: ffff888036b0fc90 R14: 0000607f46079fc0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ee23000 CR3: 00000000491b1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: est_fetch_counters+0xc3/0x160 net/core/gen_estimator.c:69 est_timer+0x92/0x730 net/core/gen_estimator.c:83 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:91 [inline] RIP: 0010:lock_is_held_type+0x42/0x140 kernel/locking/lockdep.c:5661 Code: 36 04 85 c9 0f 84 d7 00 00 00 65 8b 05 27 c6 c9 76 85 c0 0f 85 c8 00 00 00 65 4c 8b 24 25 40 f0 01 00 41 8b 94 24 1c 0a 00 00 <85> d2 0f 85 af 00 00 00 48 89 fd 41 89 f6 9c 8f 04 24 fa 48 c7 c7 RSP: 0018:ffffc90000cd7b50 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffff9200019af76 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8b981e20 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8880b9c32a0b R10: ffffed1017386541 R11: 0000000000000000 R12: ffff888010e65580 R13: 00000000ffffffff R14: ffffffff8b981ee0 R15: 0000000000000000 lock_is_held include/linux/lockdep.h:283 [inline] rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125 trace_lock_acquire include/trace/events/lock.h:13 [inline] lock_acquire+0x442/0x510 kernel/locking/lockdep.c:5596 rcu_lock_acquire include/linux/rcupdate.h:267 [inline] rcu_read_lock include/linux/rcupdate.h:687 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:410 [inline] batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:721 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 36 04 85 ss add $0x85,%al 3: c9 leaveq 4: 0f 84 d7 00 00 00 je 0xe1 a: 65 8b 05 27 c6 c9 76 mov %gs:0x76c9c627(%rip),%eax # 0x76c9c638 11: 85 c0 test %eax,%eax 13: 0f 85 c8 00 00 00 jne 0xe1 19: 65 4c 8b 24 25 40 f0 mov %gs:0x1f040,%r12 20: 01 00 22: 41 8b 94 24 1c 0a 00 mov 0xa1c(%r12),%edx 29: 00 * 2a: 85 d2 test %edx,%edx <-- trapping instruction 2c: 0f 85 af 00 00 00 jne 0xe1 32: 48 89 fd mov %rdi,%rbp 35: 41 89 f6 mov %esi,%r14d 38: 9c pushfq 39: 8f 04 24 popq (%rsp) 3c: fa cli 3d: 48 rex.W 3e: c7 .byte 0xc7 3f: c7 .byte 0xc7