watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz.7.266:7535] Modules linked in: irq event stamp: 11269519 hardirqs last enabled at (11269518): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (11269519): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (558380): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last enabled at (558380): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last enabled at (558380): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 softirqs last disabled at (558383): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (558383): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (558383): [] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 CPU: 0 UID: 0 PID: 7535 Comm: syz.7.266 Not tainted 6.15.0-rc3-syzkaller-gbe2fea9c07d4 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:unwind_next_frame+0x0/0x23b0 arch/x86/kernel/unwind_orc.c:469 Code: cc cc 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 91 4c 89 f7 e8 23 5a bf 00 eb 87 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 81 ec a0 00 00 00 49 RSP: 0018:ffffc90000007138 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc90000007140 RCX: ffffffff91bfa000 RDX: dffffc0000000000 RSI: ffffffff81d689cb RDI: ffffc90000007140 RBP: ffffc900000071d0 R08: 0000000000000027 R09: ffffc90000007230 R10: 0000000000000000 R11: ffffffff81ae6230 R12: ffff888034ceda00 R13: ffffffff81ae6230 R14: ffffc90000007220 R15: 0000000000000000 FS: 00007fad69dbf6c0(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb3aab58f98 CR3: 000000005afc8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_mempool_unpoison_object+0x9e/0x170 mm/kasan/common.c:547 kasan_mempool_unpoison_object include/linux/kasan.h:388 [inline] napi_skb_cache_get+0x398/0x6f0 net/core/skbuff.c:293 __alloc_skb+0x1ce/0x480 net/core/skbuff.c:656 napi_alloc_skb+0x84/0x760 net/core/skbuff.c:810 page_to_skb+0x264/0x980 drivers/net/virtio_net.c:840 receive_mergeable drivers/net/virtio_net.c:2430 [inline] receive_buf+0x3b8/0x1800 drivers/net/virtio_net.c:2568 virtnet_receive_packets drivers/net/virtio_net.c:2926 [inline] virtnet_receive drivers/net/virtio_net.c:2950 [inline] virtnet_poll+0x279a/0x39f0 drivers/net/virtio_net.c:3045 __napi_poll+0xcb/0x480 net/core/dev.c:7324 napi_poll net/core/dev.c:7388 [inline] net_rx_action+0x89d/0x1240 net/core/dev.c:7510 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_rnp_online_cpus kernel/rcu/tree.c:3943 [inline] RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:3953 [inline] RIP: 0010:rcu_lockdep_current_cpu_online+0xbf/0x120 kernel/rcu/tree.c:3994 Code: 18 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 14 7d 84 00 48 8b 1b 48 83 c3 70 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <74> 08 48 89 df e8 f7 7c 84 00 4c 23 3b 75 1a 48 c7 c7 c0 35 d4 8e RSP: 0018:ffffc900033a62d0 EFLAGS: 00000246 RAX: 1ffffffff1da85a6 RBX: ffffffff8ed42d30 RCX: 0000000080000001 RDX: ffff888034ceda00 RSI: ffffffff8ca1b660 RDI: ffff8880b863aae0 RBP: ffffc900033a63f0 R08: ffffffff81ce5e24 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff92000674c6c R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000001 rcu_read_lock_held_common kernel/rcu/update.c:113 [inline] rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349 trace_call_bpf+0x19d/0x8a0 kernel/trace/bpf_trace.c:146 perf_trace_run_bpf_submit+0x82/0x180 kernel/events/core.c:10788 do_perf_trace_lock include/trace/events/lock.h:50 [inline] perf_trace_lock+0x39c/0x4a0 include/trace/events/lock.h:50 __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x3b4/0x3e0 kernel/locking/lockdep.c:5877 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x1a9f/0x23b0 arch/x86/kernel/unwind_orc.c:680 arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122 save_stack+0xfc/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x1e0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2725 discard_slab mm/slub.c:2730 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3199 put_cpu_partial+0x17e/0x250 mm/slub.c:3274 __slab_free+0x294/0x390 mm/slub.c:4526 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4161 [inline] slab_alloc_node mm/slub.c:4210 [inline] __kmalloc_cache_node_noprof+0x1f4/0x3c0 mm/slub.c:4380 kmalloc_node_noprof include/linux/slab.h:928 [inline] __get_vm_area_node+0x132/0x2d0 mm/vmalloc.c:3127 __vmalloc_node_range_noprof+0x349/0x1390 mm/vmalloc.c:3804 __vmalloc_node_noprof mm/vmalloc.c:3907 [inline] vmalloc_noprof+0x79/0x90 mm/vmalloc.c:3940 bpf_prog_calc_tag+0xeb/0x8e0 kernel/bpf/core.c:303 resolve_pseudo_ldimm64+0xd3/0xd30 kernel/bpf/verifier.c:20086 bpf_check+0x1d0b/0x1d1c0 kernel/bpf/verifier.c:24007 bpf_prog_load+0x17ee/0x2250 kernel/bpf/syscall.c:2971 __sys_bpf+0x5dd/0x8b0 kernel/bpf/syscall.c:5834 __do_sys_bpf kernel/bpf/syscall.c:5941 [inline] __se_sys_bpf kernel/bpf/syscall.c:5939 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5939 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fad68f8e169 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:00007fad69dbf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fad691b5fa0 RCX: 00007fad68f8e169 RDX: 0000000000000070 RSI: 0000200000000440 RDI: 0000000000000005 RBP: 00007fad69010a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fad691b5fa0 R15: 00007ffe7d22d008 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 7532 Comm: syz.1.264 Not tainted 6.15.0-rc3-syzkaller-gbe2fea9c07d4 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:trace_call_bpf+0x2f/0x8a0 kernel/trace/bpf_trace.c:111 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 00 00 00 48 89 74 24 20 49 89 fe 48 8d 05 65 03 9a 11 65 48 8b 00 <48> 89 84 24 a0 00 00 00 49 bd 00 00 00 00 00 fc ff df 48 c7 44 24 RSP: 0018:ffffc90000a08820 EFLAGS: 00000082 RAX: 0d2ef417ec669400 RBX: ffffffff8ed9e320 RCX: ffff888026d31e00 RDX: 0000000000000100 RSI: ffffe8ffffdc9000 RDI: ffffffff8ed9e320 RBP: ffffc90000a08910 R08: 0000000000000001 R09: ffff8880b8732608 R10: ffffe8ffffdc900c R11: fffff91ffffb9203 R12: ffffe8ffffdc9000 R13: ffff8880b8732608 R14: ffffffff8ed9e320 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88812509a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f23705baff8 CR3: 0000000031cd0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_trace_run_bpf_submit+0x82/0x180 kernel/events/core.c:10788 do_perf_trace_preemptirq_template include/trace/events/preemptirq.h:14 [inline] perf_trace_preemptirq_template+0x2d4/0x400 include/trace/events/preemptirq.h:14 __do_trace_irq_disable include/trace/events/preemptirq.h:36 [inline] trace_irq_disable+0xf5/0x120 include/trace/events/preemptirq.h:36 kasan_quarantine_put+0x3d/0x230 mm/kasan/quarantine.c:207 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kmem_cache_free+0x197/0x410 mm/slub.c:4758 mac80211_hwsim_beacon_tx+0x3c4/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2317 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2347 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x5a6/0xd40 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1842 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:add_mm_rss_vec+0x113/0x310 mm/memory.c:468 Code: f7 be 01 00 00 00 e8 5c db fc ff eb 05 e8 85 b7 ae ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 1c 01 00 00 <48> 63 1b 31 ff 89 de e8 a1 bb ae ff 48 85 db 74 44 e8 57 b7 ae ff RSP: 0018:ffffc90002f271f0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90002f27528 RCX: ffff888026d31e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002f275d0 R08: ffffffff8214054d R09: 1ffffffff20bfcae R10: dffffc0000000000 R11: fffffbfff20bfcaf R12: ffff88807da9b700 R13: dffffc0000000000 R14: ffff88807da9b200 R15: ffffc90002f27520 zap_pte_range mm/memory.c:1753 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x3660/0x44d0 mm/memory.c:1894 unmap_vmas+0x3ce/0x5f0 mm/memory.c:1984 exit_mmap+0x2bc/0xde0 mm/mmap.c:1284 __mmput+0x115/0x420 kernel/fork.c:1379 exit_mm+0x221/0x310 kernel/exit.c:589 do_exit+0x994/0x27f0 kernel/exit.c:940 do_group_exit+0x207/0x2c0 kernel/exit.c:1102 get_signal+0x1696/0x1730 kernel/signal.c:3034 arch_do_signal_or_restart+0x98/0x810 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+0x100/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f329a18e169 Code: Unable to access opcode bytes at 0x7f329a18e13f. RSP: 002b:00007f329b084038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: fffffffffffffffc RBX: 00007f329a3b5fa0 RCX: 00007f329a18e169 RDX: 000000000000002c RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007f329a210a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f329a3b5fa0 R15: 00007ffc2b720428