watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:24537] Modules linked in: irq event stamp: 4299681 hardirqs last enabled at (4299680): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (4299681): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (4262426): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4262429): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 24537 Comm: syz-executor.2 Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa78/0x2490 Code: 89 4c 24 18 48 89 74 24 10 e8 c4 f3 ff ff 4d 8d 4f 40 84 c0 0f 84 9e f8 ff ff 48 8b 74 24 10 48 89 f7 e8 ab eb ff ff 48 89 ef <48> 8b 74 24 10 48 ba 00 00 00 00 00 fc ff df 48 c1 ef 03 48 8b 4c RSP: 0018:ffff88806ce09508 EFLAGS: 00000202 RAX: ffffffff83935617 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff8880354a7801 RSI: ffff8880354a7850 RDI: ffff88806ce095d0 RBP: ffff88806ce095d0 R08: ffffffff86aeb6f0 R09: ffff88806ce095b8 R10: 000000000003c001 R11: 0000000000096446 R12: ffff88806ce095d8 R13: ffff88806ce095c0 R14: ffff8880354a7858 R15: ffff88806ce09578 FS: 00007fd144bfb700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055557dbbfc58 CR3: 000000003ec32000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_acquire.part.0+0x10e/0x320 Code: b6 c9 e8 65 a6 ff ff b8 ff ff ff ff 48 83 c4 28 65 0f c1 05 cc 47 d2 7e 83 f8 01 0f 85 aa 01 00 00 48 85 ed 0f 85 9b 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff8880354a7498 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff11006a94e96 RCX: 1ffff11006a94e7b RDX: 1ffff11002c01827 RSI: 0000000000000001 RDI: 00000000e959dce5 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff0fdd9ec R10: ffffffff87eecf67 R11: 0000000000000000 R12: ffff88806ce41518 R13: 000000000003f018 R14: ffffea0000fc0600 R15: ffff88807ffdcb80 _raw_spin_trylock+0x46/0x60 free_unref_page+0x397/0xe90 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 __kmalloc_noprof+0x195/0x4b0 kobject_get_path+0xc9/0x1f0 kobject_uevent_env+0x252/0xf90 nfs_netns_sysfs_setup+0x175/0x1f0 nfs_net_init+0x10a/0x300 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd147685b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd144bfb188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fd147798f60 RCX: 00007fd147685b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fd1476dff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff6a17889f R14: 00007fd144bfb300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 65 Comm: kmemleak Not tainted 6.12.0-next-20241120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff88806cf099e0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8486f2bf RDX: fffffbfff0c1b639 RSI: 0000000000000004 RDI: ffffffff860db1c0 RBP: ffffffff860db1c0 R08: 0000000000000000 R09: fffffbfff0c1b638 R10: ffffffff860db1c3 R11: 5050505001000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b638 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005630089d6f90 CR3: 000000003c766000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1de/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6d1/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 66 4e a9 fc 48 89 ef e8 6e c1 a9 fc 80 e7 02 74 06 e8 84 1b d3 fc fb 65 ff 0d 54 bc 7c 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88800edf7e50 EFLAGS: 00000286 RAX: 00000000003e0e9b RBX: 0000000000000246 RCX: 1ffffffff0fe230b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486ea6c RBP: ffff8880158d8000 R08: 0000000000000001 R09: fffffbfff0fdd9f7 R10: ffffffff87eecfbf R11: ffff88800eb42028 R12: ffff88800eb41b80 R13: ffffc9000d56a000 R14: 0000000000000246 R15: ffffc9000d5e5000 scan_gray_list+0x20b/0x280 kmemleak_scan+0x560/0xdf0 kmemleak_scan_thread+0x78/0xc0 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 ---------------- Code disassembly (best guess): 0: 89 4c 24 18 mov %ecx,0x18(%rsp) 4: 48 89 74 24 10 mov %rsi,0x10(%rsp) 9: e8 c4 f3 ff ff callq 0xfffff3d2 e: 4d 8d 4f 40 lea 0x40(%r15),%r9 12: 84 c0 test %al,%al 14: 0f 84 9e f8 ff ff je 0xfffff8b8 1a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 1f: 48 89 f7 mov %rsi,%rdi 22: e8 ab eb ff ff callq 0xffffebd2 27: 48 89 ef mov %rbp,%rdi * 2a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi <-- trapping instruction 2f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 36: fc ff df 39: 48 c1 ef 03 shr $0x3,%rdi 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 4c rex.WR