rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10396 ticks this GP) idle=c34c/1/0x4000000000000000 softirq=30637/30639 fqs=4499 rcu: hardirqs softirqs csw/system rcu: number: 1097826 0 0 rcu: cputime: 19999 32489 40 ==> 52510(ms) rcu: (t=10503 jiffies g=33485 q=3036 ncpus=2) CPU: 1 PID: 9727 Comm: syz.2.886 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:ieee80211_rx_h_decrypt net/mac80211/rx.c:1945 [inline] RIP: 0010:ieee80211_rx_handlers+0x180a/0xb4a0 net/mac80211/rx.c:4134 Code: c6 04 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 bb 60 00 00 41 8b 1e 41 89 de 41 83 e6 01 31 ff 44 89 f6 e8 c6 9e 88 f7 c3 01 0f 85 bb 01 00 00 48 83 7c 24 70 00 0f 84 af 01 00 00 e8 RSP: 0018:ffffc900001f04c0 EFLAGS: 00000246 RAX: ffffffff89fe814a RBX: 00000000ffffffff RCX: 0000000000000100 RDX: ffff888018fd8000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900001f0790 R08: ffff888018fd8000 R09: 0000000000000003 R10: 00000000000000d0 R11: 0000000000000100 R12: 00000000ffffffff R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000080 FS: 00007f6aeb06e6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000001 CR3: 000000007af94000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600 Call Trace: ieee80211_invoke_rx_handlers net/mac80211/rx.c:4182 [inline] ieee80211_prepare_and_rx_handle+0x29ab/0x62c0 net/mac80211/rx.c:5040 ieee80211_rx_for_interface net/mac80211/rx.c:5125 [inline] __ieee80211_rx_handle_packet net/mac80211/rx.c:5298 [inline] ieee80211_rx_list+0x295e/0x32d0 net/mac80211/rx.c:5437 ieee80211_rx_napi+0x1b2/0x3d0 net/mac80211/rx.c:5460 ieee80211_rx include/net/mac80211.h:4971 [inline] ieee80211_handle_queued_frames+0x106/0x1a0 net/mac80211/main.c:319 tasklet_action_common+0x302/0x4d0 kernel/softirq.c:809 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:finish_task_switch+0x26a/0x8f0 kernel/sched/core.c:5255 Code: 0f 84 33 01 00 00 48 85 db 0f 85 52 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 00 54 31 09 e8 9b 23 30 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 RSP: 0018:ffffc90003fdf958 EFLAGS: 00000282 RAX: e5a9cbfe1cdbf200 RBX: 0000000000000000 RCX: e5a9cbfe1cdbf200 RDX: dffffc0000000000 RSI: ffffffff8acac960 RDI: ffffffff8b1c85a0 RBP: ffffc90003fdf9b0 R08: ffffffff8e8aeeef R09: 1ffffffff1d15ddd R10: dffffc0000000000 R11: fffffbfff1d15dde R12: ffff888018fd8000 R13: dffffc0000000000 R14: ffff88801ca41e00 R15: ffff8880b8f3cac8 context_switch kernel/sched/core.c:5384 [inline] __schedule+0x155b/0x45a0 kernel/sched/core.c:6700 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010 irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:bpf_capable include/linux/capability.h:202 [inline] RIP: 0010:bpf_btf_load+0x3b/0x90 kernel/bpf/syscall.c:4824 Code: db 73 f0 ff 49 8d 7f 20 ba 70 00 00 00 31 f6 e8 cb c4 de 08 48 85 c0 74 11 e8 c1 73 f0 ff b8 ea ff ff ff 5b 41 5e 41 5f 5d c3 27 00 00 00 e8 6b ec bc ff 84 c0 74 07 e8 a2 73 f0 ff eb 13 bf RSP: 0018:ffffc90003fdfd58 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffff888018fd8000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff888018fd8000 R09: 0000000000000024 R10: 0000000000000023 R11: 0000000000000000 R12: 0000000000000012 R13: 0000000000000020 R14: 00002000000003c0 R15: ffffc90003fdfdc0 __sys_bpf+0x670/0x890 kernel/bpf/syscall.c:5521 __do_sys_bpf kernel/bpf/syscall.c:5580 [inline] __se_sys_bpf kernel/bpf/syscall.c:5578 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5578 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f6aea19c799 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:00007f6aeb06e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6aea416090 RCX: 00007f6aea19c799 RDX: 0000000000000020 RSI: 00002000000003c0 RDI: 0000000000000012 RBP: 00007f6aea232c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6aea416128 R14: 00007f6aea416090 R15: 00007ffd76aedb48