watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:7386] Modules linked in: irq event stamp: 4129189 hardirqs last enabled at (4129188): [] asm_sysvec_x86_platform_ipi-0xa/0x20 hardirqs last disabled at (4129189): [] sysvec_apic_timer_interrupt+0xb/0xd0 softirqs last enabled at (4072028): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (4072031): [] __irq_exit_rcu+0x11b/0x190 CPU: 0 PID: 7386 Comm: syz-executor.4 Not tainted 6.1.0-rc3-next-20221102 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x124/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 be 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806d009a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff843918c7 RDX: fffffbfff0ac82ad RSI: 0000000000000004 RDI: ffffffff85641560 RBP: ffffffff85641560 R08: 0000000000000000 R09: ffffffff85641563 R10: fffffbfff0ac82ac R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0ac82ac R14: 0000000000000001 R15: 1ffff1100da01346 FS: 00007fa63850a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ef37000 CR3: 000000000dfe0000 CR4: 0000000000350ef0 Call Trace: do_raw_spin_lock+0x1dc/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1370 mac80211_hwsim_tx_frame+0x1ee/0x2b0 mac80211_hwsim_beacon_tx+0x562/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 Code: 00 e8 a4 ff ff ff 31 c0 e9 6d 0f f1 02 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <65> 8b 05 11 4d bb 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffff88803e31fe78 EFLAGS: 00000246 RAX: ffffffff850ece00 RBX: ffff88800d70bb00 RCX: 1ffff11001ae1730 RDX: dffffc0000000000 RSI: ffffffff811fe35a RDI: ffff88800d70bb00 RBP: ffff88800d70b900 R08: 0000000000000004 R09: 000000000000ee01 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800f5fd040 R13: ffff88800d70bb14 R14: ffff88800d70b980 R15: ffff88800d70bb80 commit_creds+0x7ae/0x1120 __sys_setgid+0x205/0x3c0 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fa63af94b19 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:00007fa63850a188 EFLAGS: 00000246 ORIG_RAX: 000000000000006a RAX: ffffffffffffffda RBX: 00007fa63b0a7f60 RCX: 00007fa63af94b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000ee01 RBP: 00007fa63afeef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7b8d69ef R14: 00007fa63850a300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7383 Comm: syz-executor.7 Not tainted 6.1.0-rc3-next-20221102 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1f9/0x2140 Code: 48 89 54 24 28 48 89 74 24 20 44 89 5c 24 18 e8 8d 3b 69 00 48 8b 54 24 28 48 8b 74 24 20 44 8b 5c 24 18 8b 0c 95 5c 13 09 86 <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 5c 13 09 86 49 RSP: 0018:ffff88806d109720 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000002 RCX: 0000000000005fa0 RDX: 000000000000129c RSI: 000000000000129c RDI: ffffffff86095dcc RBP: ffff88806d109848 R08: 0000000000000000 R09: ffff88806d1097f0 R10: ffffed100da2130b R11: 0000000000036001 R12: ffff88806d109831 R13: ffff88806d109850 R14: ffff88806d1097f0 R15: ffffffff81129cf9 FS: 0000000000000000(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563fa198f258 CR3: 0000000031af4000 CR4: 0000000000350ee0 Call Trace: __unwind_start+0x50f/0x7d0 arch_stack_walk+0x5f/0x100 stack_trace_save+0x8c/0xd0 set_track_prepare+0x74/0xe0 __create_object+0x378/0xc10 __kmem_cache_alloc_node+0x22f/0x3e0 __kmalloc_node_track_caller+0x3d/0xc0 __alloc_skb+0xe5/0x320 skb_copy+0x139/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1370 mac80211_hwsim_tx_frame+0x1ee/0x2b0 mac80211_hwsim_beacon_tx+0x562/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:percpu_counter_add_batch+0x61/0x180 Code: 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 f7 00 00 00 4c 8b 7d 58 48 89 df 65 45 8b 37 <4d> 63 e6 4d 01 ec 4c 89 e2 48 c1 fa 3f 48 89 d0 4c 31 e0 48 29 d0 RSP: 0018:ffff8880360af6b8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000020 RCX: 1ffffffff0eb3ae0 RDX: 1ffff11002a5f2af RSI: 0000000000000002 RDI: 0000000000000020 RBP: ffff8880152f9520 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffffa R11: 0000000000000001 R12: ffffffff8590d150 R13: fffffffffffffffa R14: 00000000ffffffe3 R15: 0000607f92c00f98 unmap_page_range+0xea2/0x2a50 unmap_single_vma+0x190/0x2b0 unmap_vmas+0x21e/0x380 exit_mmap+0x154/0x690 mmput+0xd1/0x3a0 do_exit+0x993/0x2730 do_group_exit+0xd0/0x2b0 get_signal+0x2195/0x22e0 arch_do_signal_or_restart+0x75/0x5b0 exit_to_user_mode_prepare+0x131/0x1b0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f1b0ca51b19 Code: Unable to access opcode bytes at 0x7f1b0ca51aef. RSP: 002b:00007f1b09fa6218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000000 RBX: 00007f1b0cb65028 RCX: 00007f1b0ca51b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1b0cb65028 RBP: 00007f1b0cb65020 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1b0cb6502c R13: 00007ffd8cd156df R14: 00007f1b09fa6300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 65 48 add %ah,0x48(%rbp) 5: 2b 04 25 28 00 00 00 sub 0x28,%eax c: 0f 85 cd 0a 00 00 jne 0xadf 12: 48 81 c4 88 00 00 00 add $0x88,%rsp 19: 5b pop %rbx 1a: 5d pop %rbp 1b: 41 5c pop %r12 1d: 41 5d pop %r13 1f: 41 5e pop %r14 21: 41 5f pop %r15 23: e9 be 1f 00 00 jmpq 0x1fe6 28: f3 90 pause * 2a: e9 71 ff ff ff jmpq 0xffffffa0 <-- trapping instruction 2f: 44 8b 74 24 48 mov 0x48(%rsp),%r14d 34: 41 81 fe 00 01 00 00 cmp $0x100,%r14d 3b: 0f .byte 0xf 3c: 84 e5 test %ah,%ch