rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 GPs behind) idle=adcc/1/0x4000000000000000 softirq=152687/152692 fqs=4651 (t=10500 jiffies g=203693 q=2758 ncpus=2) CPU: 0 PID: 7315 Comm: syz.3.10027 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:trace_netif_receive_skb_list_exit include/trace/events/net.h:309 [inline] RIP: 0010:netif_receive_skb_list+0xd0/0x4e0 net/core/dev.c:5906 Code: 06 46 a0 f9 31 f6 4c 0f a3 35 04 eb ec 05 0f 92 c3 40 0f 92 c6 bf 02 00 00 00 e8 0b 3f 4f f9 84 db 74 17 e8 22 34 39 f9 84 c0 <74> 2b e8 99 3c 4f f9 eb 0c e8 92 3c 4f f9 eb 05 e8 8b 3c 4f f9 48 RSP: 0018:ffffc90000007bc0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0a8c3795577b7200 RDX: ffff88802b388000 RSI: ffffffff8adf2040 RDI: ffffffff8adf2000 RBP: 0000000000000002 R08: ffffffff8e2029ef R09: 1ffffffff1c4053d R10: dffffc0000000000 R11: fffffbfff1c4053e R12: dffffc0000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff89aeadf0 FS: 00007f9e3ff736c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3331eff8 CR3: 0000000052a04000 CR4: 00000000003506f0 DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_rx_napi+0x357/0x3d0 net/mac80211/rx.c:5342 ieee80211_rx include/net/mac80211.h:4849 [inline] ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:317 tasklet_action_common+0x2fe/0x4d0 kernel/softirq.c:827 handle_softirqs+0x2a1/0x930 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline] RIP: 0010:deref_stack_reg+0x63/0x230 arch/x86/kernel/unwind_orc.c:357 Code: 48 89 df e8 2f 48 9a 00 4c 8b 04 24 48 be 00 00 00 00 00 fc ff df 48 89 5c 24 10 49 8b 5f 08 4d 8d 77 10 4d 89 f5 49 c1 ed 03 <41> 80 7c 35 00 00 74 16 4c 89 f7 e8 fd 47 9a 00 4c 8b 04 24 48 be RSP: 0018:ffffc9000d67f778 EFLAGS: 00000a06 RAX: fffffffffffffff0 RBX: ffffc9000d678000 RCX: 0000000000000000 RDX: ffffc9000d67f8e8 RSI: dffffc0000000000 RDI: ffffc9000d67f8a8 RBP: ffffffff8f381b98 R08: ffffc9000d67ff48 R09: ffffc9000d67f8f8 R10: dffffc0000000000 R11: fffff52001acff21 R12: 1ffff92001acff16 R13: 1ffff92001acff17 R14: ffffc9000d67f8b8 R15: ffffc9000d67f8a8 unwind_next_frame+0x1758/0x20b0 arch/x86/kernel/unwind_orc.c:-1 arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:53 ____kasan_kmalloc mm/kasan/common.c:375 [inline] __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384 kmalloc include/linux/slab.h:563 [inline] kzalloc include/linux/slab.h:699 [inline] ref_tracker_alloc+0x14e/0x4b0 lib/ref_tracker.c:85 netns_tracker_alloc include/net/net_namespace.h:328 [inline] get_net_track include/net/net_namespace.h:344 [inline] sk_alloc+0x1ad/0x340 net/core/sock.c:2120 inet_create+0x79d/0x1040 net/ipv4/af_inet.c:319 __sock_create+0x4a2/0x940 net/socket.c:1549 sock_create net/socket.c:1605 [inline] __sys_socket_create net/socket.c:1642 [inline] __sys_socket+0xc4/0x190 net/socket.c:1670 __do_sys_socket net/socket.c:1683 [inline] __se_sys_socket net/socket.c:1681 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1681 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f9e3f19ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9e3ff73028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f9e3f416180 RCX: 00007f9e3f19ce59 RDX: 0000000000000084 RSI: 0000000000000003 RDI: 0000000000000002 RBP: 00007f9e3f232d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9e3f416218 R14: 00007f9e3f416180 R15: 00007fff0da4bce8