process 'syz-executor.2' launched './file1' with NULL argv: empty string added EXT4-fs: Ignoring removed bh option syz-executor.4: attempt to access beyond end of device loop4: rw=4096, sector=2, nr_sectors = 2 limit=0 EXT4-fs (loop4): unable to read superblock watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.5:17534] Modules linked in: irq event stamp: 2593127 hardirqs last enabled at (2593126): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2593127): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2514402): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2514425): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 17534 Comm: syz-executor.5 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0xde/0x1d0 Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e5 00 00 00 48 8b 73 28 48 89 da 48 89 ef e8 2d 17 f5 ff 85 c0 74 13 31 c0 48 83 c4 08 5b <5d> 41 5c 41 5d 41 5e e9 86 49 72 03 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffff88806ce09570 EFLAGS: 00000282 RAX: ffff88803cdd8001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff88803cdd7601 RSI: ffff88803cdd75f8 RDI: ffff88806ce09618 RBP: ffff88803cdd75f8 R08: ffffffff86834e4a R09: ffff88806ce09648 R10: 000000000003c001 R11: 0000000000022631 R12: 0000000000000008 R13: ffff88803cdd0000 R14: ffff88803cdd7600 R15: ffff88806ce09608 FS: 00007f2e9a876700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76914f8718 CR3: 0000000015208000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xa5c/0x2490 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_node_noprof+0x14c/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 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:__slab_free+0x7f/0x310 Code: c1 e8 1f 4d 85 ed 66 89 5c 24 58 41 89 c6 41 0f 94 c2 66 85 db 74 05 45 84 d2 74 05 45 84 f6 74 42 41 8b 7f 08 4c 8b 4c 24 58 <4c> 89 ea 4c 89 e6 4c 8b 44 24 20 e8 91 a0 ff ff 84 c0 74 9d 4c 89 RSP: 0018:ffff88803cdd7550 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000000d000c RCX: 00000000000d000d RDX: ffff88800d6434a0 RSI: ffffea00003590c0 RDI: 0000000000089800 RBP: ffff88803cdd75f0 R08: 0000000000000001 R09: 00000000000d000c R10: ffffea0000359001 R11: ffffea000063a578 R12: ffffea00003590c0 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888008c4f780 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 __register_sysctl_table+0xb6/0x16d0 xfrm4_net_init+0xf3/0x1a0 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: 0033:0x7f2e9d321b19 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:00007f2e9a876188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f2e9d435020 RCX: 00007f2e9d321b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f2e9d37bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffdd23a57f R14: 00007f2e9a876300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc7-next-20241115 #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: ffffffff8486d2bf RDX: fffffbfff0c1b869 RSI: 0000000000000004 RDI: ffffffff860dc340 RBP: ffffffff860dc340 R08: 0000000000000000 R09: fffffbfff0c1b868 R10: ffffffff860dc343 R11: 5050505000000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b868 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557d0aa93618 CR3: 000000000df56000 CR4: 0000000000350ef0 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:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d 29 d0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000202 RAX: 00000000001bd1e9 RBX: 0000000000000001 RCX: ffffffff8484aaf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b0fca RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863fa390 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess): 0: 89 fa mov %edi,%edx 2: 48 c1 ea 03 shr $0x3,%rdx 6: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) a: 0f 85 e5 00 00 00 jne 0xf5 10: 48 8b 73 28 mov 0x28(%rbx),%rsi 14: 48 89 da mov %rbx,%rdx 17: 48 89 ef mov %rbp,%rdi 1a: e8 2d 17 f5 ff callq 0xfff5174c 1f: 85 c0 test %eax,%eax 21: 74 13 je 0x36 23: 31 c0 xor %eax,%eax 25: 48 83 c4 08 add $0x8,%rsp 29: 5b pop %rbx * 2a: 5d pop %rbp <-- trapping instruction 2b: 41 5c pop %r12 2d: 41 5d pop %r13 2f: 41 5e pop %r14 31: e9 86 49 72 03 jmpq 0x37249bc 36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3d: fc ff df