RBP: 0000000020000240 R08: 0000000000000000 R09: 0000000020000200 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000010000 R13: 0000000020000240 R14: 00007f0845fb1000 R15: 0000000020000400 watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.7:19460] Modules linked in: irq event stamp: 4672755 hardirqs last enabled at (4672754): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4672755): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4670176): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4670179): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 19460 Comm: syz-executor.7 Not tainted 6.1.0-next-20221219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x8/0x20 Code: bf 06 00 00 00 e9 b8 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <40> 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 e9 86 fe ff ff 66 0f 1f 44 RSP: 0018:ffff88806cf09738 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffffffff8564ea80 RCX: ffffffff8149aa51 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff876358c7 R10: fffffbfff0ec6b18 R11: 0000000000000001 R12: 00007f46123a0b19 R13: 0000000000000000 R14: ffff888043293580 R15: ffffffff834c83a6 FS: 00007f460f916700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7319923000 CR3: 00000000487fa000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __is_insn_slot_addr+0x51/0x250 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x82/0x90 __kmalloc_node_track_caller+0x53/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x1310 ieee80211_beacon_get_tim+0x99/0x4f0 mac80211_hwsim_beacon_tx+0x1d2/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x33/0x1a0 Code: 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 bc 00 00 00 00 00 fc ff df 55 48 89 f5 53 48 83 ec 08 eb 4d 49 63 86 c0 00 00 00 <49> 8b 18 4c 89 f7 49 29 c0 4c 89 c6 4d 89 c7 e8 39 f4 ff ff 48 89 RSP: 0018:ffff888049a275d8 EFLAGS: 00000202 RAX: 0000000000000258 RBX: ffff88801bfd4a98 RCX: ffff8880084c6000 RDX: ffffea00006ff500 RSI: ffffea000059d780 RDI: 0000000040000000 RBP: 0000000000000000 R08: ffff88801bfd4a98 R09: 00000000000d000a R10: ffffea000059d780 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888049a27618 R14: ffff8880084c6000 R15: ffff88801675eab0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x4c/0x70 kmem_cache_alloc+0x1e1/0x410 ptlock_alloc+0x21/0x70 pte_alloc_one+0x6c/0x200 __pte_alloc+0x6d/0x210 copy_page_range+0x1c19/0x4430 dup_mmap+0xa4a/0x10b0 copy_process+0x6b69/0x7220 kernel_clone+0xeb/0x950 __do_sys_fork+0x80/0xc0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f46123a0b19 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:00007f460f916188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f46124b3f60 RCX: 00007f46123a0b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f46123faf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd762d07cf R14: 00007f460f916300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: bf 06 00 00 00 mov $0x6,%edi 5: e9 b8 fe ff ff jmpq 0xfffffec2 a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 11: 00 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: f3 0f 1e fa endbr64 26: 48 8b 0c 24 mov (%rsp),%rcx * 2a: 40 0f b6 d6 movzbl %sil,%edx <-- trapping instruction 2e: 40 0f b6 f7 movzbl %dil,%esi 32: bf 01 00 00 00 mov $0x1,%edi 37: e9 86 fe ff ff jmpq 0xfffffec2 3c: 66 data16 3d: 0f .byte 0xf 3e: 1f (bad) 3f: 44 rex.R