watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.4.114:6302] Modules linked in: irq event stamp: 11094633 hardirqs last enabled at (11094632): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (11094633): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (11072916): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (11072916): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (11072916): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 softirqs last disabled at (11072919): [] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (11072919): [] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (11072919): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 CPU: 0 UID: 0 PID: 6302 Comm: syz.4.114 Not tainted 6.12.0-syzkaller-gc8d02b547363 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_release_data+0x396/0x8a0 net/core/skbuff.c:1118 Code: 00 fc ff df e9 be 01 00 00 e8 26 9a 01 f8 4c 8b 74 24 10 45 84 e4 0f 85 07 02 00 00 e8 13 9a 01 f8 4c 8b 64 24 08 4d 8d 6e 02 <4c> 89 e8 48 c1 e8 03 48 89 44 24 50 42 0f b6 04 38 84 c0 0f 85 d0 RSP: 0018:ffffc90000007ab0 EFLAGS: 00000246 RAX: ffffffff8994444c RBX: 0000000000000000 RCX: ffff88802cb73c00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88805aa6b140 R08: ffffffff89944442 R09: 1ffffffff203c806 R10: dffffc0000000000 R11: fffffbfff203c807 R12: ffff888058879cfe R13: ffff88805aa6b142 R14: ffff88805aa6b140 R15: dffffc0000000000 FS: 00007fb39dabc6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2813df CR3: 00000000344f4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb net/core/skbuff.c:1204 [inline] consume_skb+0x9f/0xf0 net/core/skbuff.c:1436 mac80211_hwsim_beacon_tx+0x3bf/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2315 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:775 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:811 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:___slab_alloc+0xaf5/0x14b0 Code: 00 00 00 00 9c 8f 44 24 60 f7 44 24 60 00 02 00 00 0f 85 fe 07 00 00 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 68 0f 85 af 08 00 00 4c 89 f8 48 83 c4 70 5b 41 5c 41 RSP: 0018:ffffc9000ca3eab8 EFLAGS: 00000206 RAX: 2ca40e6fefd13e00 RBX: ffff8880b8642ab0 RCX: ffffffff9a426903 RDX: dffffc0000000000 RSI: ffffffff8c0ad880 RDI: ffffffff8c615460 RBP: 0000000000000000 R08: ffffffff901e4037 R09: 1ffffffff203c806 R10: dffffc0000000000 R11: fffffbfff203c807 R12: ffff8880b8642a90 R13: 0000000000000202 R14: ffff88801ac42000 R15: ffff8880588c8000 __slab_alloc+0x58/0xa0 mm/slub.c:3908 __slab_alloc_node mm/slub.c:3961 [inline] slab_alloc_node mm/slub.c:4122 [inline] __kmalloc_cache_noprof+0x1d5/0x2c0 mm/slub.c:4290 kmalloc_noprof include/linux/slab.h:879 [inline] kzalloc_noprof include/linux/slab.h:1015 [inline] copy_verifier_state+0x944/0xec0 kernel/bpf/verifier.c:1514 is_state_visited kernel/bpf/verifier.c:18413 [inline] do_check+0x4522/0xfcd0 kernel/bpf/verifier.c:18575 do_check_common+0x1564/0x2010 kernel/bpf/verifier.c:21848 do_check_main kernel/bpf/verifier.c:21939 [inline] bpf_check+0x19380/0x1f1b0 kernel/bpf/verifier.c:22656 bpf_prog_load+0x1667/0x20f0 kernel/bpf/syscall.c:2947 __sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5790 __do_sys_bpf kernel/bpf/syscall.c:5897 [inline] __se_sys_bpf kernel/bpf/syscall.c:5895 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895 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: 0033:0x7fb39cd80809 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:00007fb39dabc058 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fb39cf46080 RCX: 00007fb39cd80809 RDX: 0000000000000090 RSI: 0000000020000380 RDI: 0000000000000005 RBP: 00007fb39cdf393e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb39cf46080 R15: 00007ffe582d0b78 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 6313 Comm: syz.3.118 Not tainted 6.12.0-syzkaller-gc8d02b547363 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_single+0x464/0x1990 kernel/smp.c:679 Code: 83 e4 01 75 16 e8 4c 22 0c 00 4d 89 fc 44 8b 7c 24 24 eb 46 e8 3d 22 0c 00 eb 3f 4d 89 fc 44 8b 7c 24 24 f3 90 42 0f b6 04 2b <84> c0 75 10 41 f7 06 01 00 00 00 74 1e e8 1a 22 0c 00 eb e5 44 89 RSP: 0018:ffffc9000c7ff4a0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff920018ffeb1 RCX: ffff888031729e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000c7ff630 R08: ffffffff8189bdb9 R09: 1ffffffff203c806 R10: dffffc0000000000 R11: ffffffff813f9250 R12: 1ffff920018ffeac R13: dffffc0000000000 R14: ffffc9000c7ff588 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8cbe928900 CR3: 000000000e738000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cpu_function_call kernel/events/core.c:153 [inline] event_function_call+0x323/0xbf0 kernel/events/core.c:319 perf_event_release_kernel+0x1b0/0x850 kernel/events/core.c:5495 perf_release+0x38/0x40 kernel/events/core.c:5589 __fput+0x23c/0xa50 fs/file_table.c:450 task_work_run+0x24f/0x310 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0xa2f/0x28e0 kernel/exit.c:938 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 get_signal+0x16b2/0x1750 kernel/signal.c:3016 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f21ec180809 Code: Unable to access opcode bytes at 0x7f21ec1807df. RSP: 002b:00007f21ed00e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f21ec345fa8 RCX: 00007f21ec180809 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f21ec345fac RBP: 00007f21ec345fa0 R08: 7fffffffffffffff R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f21ec345fac R13: 0000000000000000 R14: 00007ffd2b444d30 R15: 00007ffd2b444e18