watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.5:8423] Modules linked in: irq event stamp: 5857029 hardirqs last enabled at (5857028): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5857029): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5811252): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5811255): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 8423 Comm: syz-executor.5 Not tainted 6.2.0-rc3-next-20230112 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__kmem_cache_alloc_node+0x116/0x2f0 Code: 48 85 c0 0f 84 bc 01 00 00 41 83 fd ff 74 10 48 8b 00 48 c1 e8 3a 41 39 c5 0f 85 a6 01 00 00 8b 45 28 48 8b 7d 00 49 8b 1c 00 <40> f6 c7 0f 0f 85 c2 01 00 00 48 8d 4a 40 4c 89 c0 65 48 0f c7 0f RSP: 0018:ffff88806cf09ae8 EFLAGS: 00000246 RAX: 0000000000000100 RBX: ffff88801f255000 RCX: 0000000000000000 RDX: 0000000001fb0a01 RSI: 0000000000000200 RDI: 000000000003cb80 RBP: ffff888008441c80 R08: ffff88801f257400 R09: 0000000000000000 R10: fffffbfff0ecaf25 R11: 0000000000000001 R12: 0000000000082820 R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5cd97a718 CR3: 000000000efbe000 CR4: 0000000000350ee0 Call Trace: __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __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:kasan_check_range+0x179/0x1d0 Code: ff ff 41 bb 01 00 00 00 5b 5d 44 89 d8 41 5c e9 71 25 c7 02 48 85 d2 74 e9 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 db 80 38 00 <74> f2 e9 64 ff ff ff 41 bb 01 00 00 00 44 89 d8 e9 46 25 c7 02 48 RSP: 0018:ffff8880449e7560 EFLAGS: 00000246 RAX: fffff940001e0ad6 RBX: fffff940001e0ad7 RCX: ffffffff81633b22 RDX: fffff940001e0ad7 RSI: 0000000000000004 RDI: ffffea0000f056b4 RBP: fffff940001e0ad6 R08: 0000000000000000 R09: ffffea0000f056b7 R10: fffff940001e0ad6 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 00000000000000d2 R15: ffffea0000f05680 release_pages+0x242/0x1040 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x1843/0x2ef0 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x225/0x370 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fa5d0446b19 Code: Unable to access opcode bytes at 0x7fa5d0446aef. RSP: 002b:00007fa5cd9bc188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000004 RBX: 00007fa5d0559f60 RCX: 00007fa5d0446b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007fa5d04a0f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0d0f8a1f R14: 00007fa5cd9bc300 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: 48 85 c0 test %rax,%rax 3: 0f 84 bc 01 00 00 je 0x1c5 9: 41 83 fd ff cmp $0xffffffff,%r13d d: 74 10 je 0x1f f: 48 8b 00 mov (%rax),%rax 12: 48 c1 e8 3a shr $0x3a,%rax 16: 41 39 c5 cmp %eax,%r13d 19: 0f 85 a6 01 00 00 jne 0x1c5 1f: 8b 45 28 mov 0x28(%rbp),%eax 22: 48 8b 7d 00 mov 0x0(%rbp),%rdi 26: 49 8b 1c 00 mov (%r8,%rax,1),%rbx * 2a: 40 f6 c7 0f test $0xf,%dil <-- trapping instruction 2e: 0f 85 c2 01 00 00 jne 0x1f6 34: 48 8d 4a 40 lea 0x40(%rdx),%rcx 38: 4c 89 c0 mov %r8,%rax 3b: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi)