rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 3477 jiffies s: 9221 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8060 Comm: syz-executor Not tainted 6.10.0-syzkaller-09704-gcc73bbab4b1f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:kasan_check_range+0xc/0x290 mm/kasan/generic.c:188 Code: 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02 RSP: 0018:ffffc90000a17520 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 0000000000000067 RCX: ffffffff816f915c RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92ff0608 RBP: 798a1fc9a8163414 R08: ffffffff92ff0607 R09: 1ffffffff25fe0c0 R10: dffffc0000000000 R11: fffffbfff25fe0c1 R12: 0000000000000000 R13: ffff888027b228d8 R14: 1ffff11004f64557 R15: ffff888027b22ab8 FS: 000055557667c500(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fddf0906000 CR3: 000000001f9a6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] hlock_class kernel/locking/lockdep.c:227 [inline] __lock_acquire+0xf3c/0x2040 kernel/locking/lockdep.c:5138 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 debug_objects_fill_pool+0x9f/0x9b0 lib/debugobjects.c:615 debug_object_activate+0x135/0x510 lib/debugobjects.c:705 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline] debug_activate kernel/time/hrtimer.c:478 [inline] enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085 __run_hrtimer kernel/time/hrtimer.c:1706 [inline] __hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x90 kernel/kcov.c:303 Code: 10 48 89 74 0a 18 4c 89 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 80 d5 03 00 65 8b 05 30 87 RSP: 0018:ffffc90000a17e28 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888027b21e00 RDX: 0000000000000102 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88801167b0b8 R08: ffffffff8a348f9f R09: ffffc90000a18170 R10: ffffc90000a18160 R11: fffff52000142ffa R12: ffff88806241c000 R13: ffff88801167b0cf R14: 1ffff110022cf619 R15: 1ffff110022cf617 lockdep_rtnl_is_held+0x26/0x40 net/core/rtnetlink.c:177 __in6_dev_get include/net/addrconf.h:324 [inline] ip6_ignore_linkdown include/net/addrconf.h:415 [inline] find_match+0xd8/0xc10 net/ipv6/route.c:744 __find_rr_leaf+0x275/0x8e0 net/ipv6/route.c:832 find_rr_leaf net/ipv6/route.c:853 [inline] rt6_select net/ipv6/route.c:897 [inline] fib6_table_lookup+0x413/0xbb0 net/ipv6/route.c:2195 ip6_pol_route+0x273/0x15d0 net/ipv6/route.c:2231 pol_lookup_func include/net/ip6_fib.h:616 [inline] fib6_rule_lookup+0x58c/0x790 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup net/ipv6/route.c:2300 [inline] ip6_route_input+0x859/0xd90 net/ipv6/route.c:2596 ip6_list_rcv_finish net/ipv6/ip6_input.c:131 [inline] ip6_sublist_rcv+0x74b/0x1110 net/ipv6/ip6_input.c:320 ipv6_list_rcv+0x42d/0x480 net/ipv6/ip6_input.c:355 __netif_receive_skb_list_ptype net/core/dev.c:5703 [inline] __netif_receive_skb_list_core+0x75b/0x980 net/core/dev.c:5751 __netif_receive_skb_list net/core/dev.c:5803 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5895 netif_receive_skb_list+0x55/0x4b0 net/core/dev.c:5947 ieee80211_rx_napi+0x362/0x3c0 net/mac80211/rx.c:5489 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763 Code: 2b 00 74 08 4c 89 f7 e8 7a 08 8a 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc9000d787080 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92001af0e1c RCX: 72ffc8643900ae00 RDX: dffffc0000000000 RSI: ffffffff8bcadaa0 RDI: ffffffff8c206900 RBP: ffffc9000d7871d0 R08: ffffffff92ff0607 R09: 1ffffffff25fe0c0 R10: dffffc0000000000 R11: fffffbfff25fe0c1 R12: 1ffff92001af0e18 R13: dffffc0000000000 R14: ffffc9000d7870e0 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:327 [inline] rcu_read_lock include/linux/rcupdate.h:839 [inline] page_ext_get+0x3d/0x2a0 mm/page_ext.c:521 page_table_check_set+0x52/0x550 mm/page_table_check.c:114 __page_table_check_ptes_set+0x30f/0x410 mm/page_table_check.c:225 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline] set_ptes include/linux/pgtable.h:267 [inline] __copy_present_ptes mm/memory.c:955 [inline] copy_present_ptes mm/memory.c:1038 [inline] copy_pte_range mm/memory.c:1153 [inline] copy_pmd_range+0x475a/0x8500 mm/memory.c:1240 copy_pud_range mm/memory.c:1277 [inline] copy_p4d_range mm/memory.c:1301 [inline] copy_page_range+0x99f/0xe90 mm/memory.c:1399 dup_mmap kernel/fork.c:747 [inline] dup_mm kernel/fork.c:1671 [inline] copy_mm+0x11ea/0x1f30 kernel/fork.c:1720 copy_process+0x187a/0x3dc0 kernel/fork.c:2373 kernel_clone+0x226/0x8f0 kernel/fork.c:2780 __do_sys_clone kernel/fork.c:2923 [inline] __se_sys_clone kernel/fork.c:2907 [inline] __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2907 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fddf076c813 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffe05e4f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fddf076c813 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 000055557667c7d0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009