watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:10584] Modules linked in: irq event stamp: 3901233 hardirqs last enabled at (3901232): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3901233): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3895426): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3895439): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 10584 Comm: syz-executor.3 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:memset_orig+0x72/0xb0 Code: 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 <48> 89 07 48 8d 7f 08 75 f5 83 e2 07 74 0a ff ca 88 07 48 8d 7f 01 RSP: 0018:ffff88806ce09a20 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff88801a5dc280 RCX: 0000000000000001 RDX: 0000000000000020 RSI: 0000000000000000 RDI: ffff88803fe1c450 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: ffff88803fe1c440 R11: 0000000000000000 R12: ffff88803fe1c460 R13: ffff88803fe1c440 R14: 0000000000000820 R15: ffff88800969c280 FS: 00007fd2271ea700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005611baf7bb70 CR3: 000000003f746000 CR4: 0000000000350ef0 Call Trace: __build_skb_around+0x23b/0x3b0 __alloc_skb+0x19e/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+0x2cb/0x5d0 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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x96/0x160 Code: 0f 82 e0 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 f8 ed f1 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 d6 ed f1 03 48 8b 72 08 <48> 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 RSP: 0018:ffff88802ba9f9c0 EFLAGS: 00000282 RAX: ffff888012cf2378 RBX: ffff888012cf2378 RCX: ffff888092cf2378 RDX: ffffea00004b3c80 RSI: ffff888008c4f780 RDI: ffffffff8183f876 RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0fda9d9 R10: ffffffff87ed4ecf R11: 00000000000007e0 R12: 0000000000000000 R13: ffff88802ba9f9f8 R14: ffff88800c14c4a0 R15: ffff88800c14c4a0 kasan_quarantine_reduce+0x19c/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 alloc_empty_file+0x76/0x1e0 path_openat+0xe1/0x2980 do_filp_open+0x1b8/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd229c74b19 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:00007fd2271ea188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd229d87f60 RCX: 00007fd229c74b19 RDX: 0000000000000000 RSI: 0000000020000280 RDI: ffffffffffffff9c RBP: 00007fd229ccef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeff278fbf R14: 00007fd2271ea300 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-rc3-next-20241016 #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:ffff88806cf099f8 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff84845a6f RDX: fffffbfff0c1a969 RSI: 0000000000000004 RDI: ffffffff860d4b40 RBP: ffffffff860d4b40 R08: 0000000000000000 R09: fffffbfff0c1a968 R10: ffffffff860d4b43 R11: 5050505001000011 R12: 1ffff1100d9e1340 R13: 0000000000000003 R14: fffffbfff0c1a968 R15: ffff88806cf09a30 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fccd1bab010 CR3: 000000000ebac000 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+0x2cb/0x5d0 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+0x94/0xc0 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 69 41 40 00 0f 1f 44 00 00 fb f4 e9 5c 28 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096c7e68 EFLAGS: 00000206 RAX: 00000000000ec7a3 RBX: 0000000000000001 RCX: ffffffff848238d7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812ad1ed RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6c70 R10: ffff88806cf36383 R11: 0000000000000000 R12: ffffffff863f2748 R13: 1ffff110012d8fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fd/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. audit: type=1400 audit(1729124088.497:12): avc: denied { read } for pid=10785 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 ---------------- Code disassembly (best guess): 0: 47 28 48 89 rex.RXB sub %r9b,-0x77(%r8) 4: 47 30 48 89 rex.RXB xor %r9b,-0x77(%r8) 8: 47 38 48 8d rex.RXB cmp %r9b,-0x73(%r8) c: 7f 40 jg 0x4e e: 75 d8 jne 0xffffffe8 10: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 17: 00 18: 89 d1 mov %edx,%ecx 1a: 83 e1 38 and $0x38,%ecx 1d: 74 14 je 0x33 1f: c1 e9 03 shr $0x3,%ecx 22: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 28: ff c9 dec %ecx * 2a: 48 89 07 mov %rax,(%rdi) <-- trapping instruction 2d: 48 8d 7f 08 lea 0x8(%rdi),%rdi 31: 75 f5 jne 0x28 33: 83 e2 07 and $0x7,%edx 36: 74 0a je 0x42 38: ff ca dec %edx 3a: 88 07 mov %al,(%rdi) 3c: 48 8d 7f 01 lea 0x1(%rdi),%rdi