rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=6734/1/0x4000000000000000 softirq=17391/17392 fqs=4610
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   943432          1            0
rcu: 	cputime:    24455      28014          103   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=10701 q=4183 ncpus=2)
CPU: 1 UID: 0 PID: 6530 Comm: syz.3.166 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70
Code: 89 fb e8 23 00 00 00 48 8b 3d 44 cb fb 0b 48 89 de 5b e9 33 5c 58 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 10 a0 92 65 8b 15 28 e7
RSP: 0018:ffffc900001e0ad8 EFLAGS: 00000246
RAX: f85891a559106a00 RBX: dffffc0000000000 RCX: 0000000000000100
RDX: 0000000000000002 RSI: ffffffff8d998940 RDI: 00000000ffffffff
RBP: ffffc900001e0b90 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: 000000008000000e
R13: 1ffff9200003c15c R14: 0000000000000a06 R15: 00000000ffffd64a
FS:  00007fd2fee046c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002180 CR3: 0000000110990000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 mix_interrupt_randomness+0x1e3/0x2d0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 1d 21 f6 e8 c6 f0 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc9000446efe0 EFLAGS: 00000282
RAX: f85891a559106a00 RBX: 0000000000000000 RCX: f85891a559106a00
RDX: 0000000000000007 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc9000446f080 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200088ddfc
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:qlist_free_all+0x6d/0x140
Code: 4c 04 08 f6 c1 01 75 53 49 01 c4 0f 1f 44 00 00 41 0f b6 44 24 33 c1 e0 18 3d 00 00 00 f5 4d 0f 45 e5 4d 8b 64 24 08 49 8b 2f <49> 63 84 24 c0 00 00 00 49 29 c7 4c 89 e7 4c 89 fe e8 bd e3 ff ff
RSP: 0018:ffffc9000446f148 EFLAGS: 00000246
RAX: 00000000f5000000 RBX: ffffc9000446f180 RCX: ffff88801b68f280
RDX: ffffc900294f3000 RSI: 000000000000bd26 RDI: 000000000000bd27
RBP: ffff88810363d998 R08: 000000000000000e R09: ffff88811b4fb000
R10: 0000000000000000 R11: fffffbfff1f43d3f R12: ffff88801b68f280
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881053cb9a0
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 fib_trie_unmerge+0x272/0xcd0
 fib_unmerge+0xc5/0x360
 fib4_rule_configure+0x2e2/0xa50
 fib_newrule+0x512/0xf20
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd2fdf8e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd2fee04038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd2fe1b5fa0 RCX: 00007fd2fdf8e9a9
RDX: 0000000000000004 RSI: 00002000000000c0 RDI: 0000000000000007
RBP: 00007fd2fe010d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd2fe1b5fa0 R15: 00007ffe9bf79038
 </TASK>
