audit: type=1326 audit(1673431551.123:115): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=10198 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3a44c11b19 code=0x0 random: crng reseeded on system resumption random: crng reseeded on system resumption random: crng reseeded on system resumption watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:10186] Modules linked in: irq event stamp: 6230507 hardirqs last enabled at (6230506): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6230507): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6214910): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6214913): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 10186 Comm: syz-executor.2 Not tainted 6.2.0-rc3-next-20230110 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 46 b3 e7 fc 48 89 ef e8 8e 2a e8 fc 80 e7 02 74 06 e8 c4 25 0c fd fb bf 01 00 00 00 79 78 dd fc 65 8b 05 6a 25 bf 7b 85 c0 74 07 5b 5d e9 5b 29 00 RSP: 0018:ffff88806cf09ad0 EFLAGS: 00000206 RAX: 00000000005f11d4 RBX: 0000000000000246 RCX: ffffffff812b79af RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000001 RBP: ffffffff856d4340 R08: 0000000000000001 R09: ffffffff8765298f R10: fffffbfff0eca531 R11: 0000000000000001 R12: 0000000000082a20 R13: 0000000000000200 R14: 0000000000000200 R15: 0000000000000000 FS: 00007f0ba4107700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 0000000044a22000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __kmem_cache_alloc_node+0x1ed/0x2f0 __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:__sanitizer_cov_trace_pc+0x0/0x70 Code: be a8 01 00 00 e8 a0 ff ff ff 31 c0 e9 9d 1a fb 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 7d 16 ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff88804075f3e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff812b79af RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000050 R08: 0000000000000001 R09: ffffffff8765298f R10: fffffbfff0eca531 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88803ddeb990 R14: ffff88803ddeb998 R15: 0000000000000010 ip_finish_output2+0x740/0x2120 ip_do_fragment+0x1e14/0x24e0 ip_fragment.constprop.0+0x16b/0x240 __ip_finish_output.part.0+0x883/0xd10 ip_output+0x2ec/0x8e0 ip_push_pending_frames+0x30b/0x5c0 raw_sendmsg+0x120d/0x2c00 inet_sendmsg+0x121/0x150 sock_sendmsg+0x140/0x190 ____sys_sendmsg+0x744/0x930 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1d0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f0ba6bb2b19 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:00007f0ba4107188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0ba6cc6020 RCX: 00007f0ba6bb2b19 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000006 RBP: 00007f0ba6c0cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5e6252ef R14: 00007f0ba4107300 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 83 c7 18 add $0x18,%rdi 4: 53 push %rbx 5: 48 89 f3 mov %rsi,%rbx 8: 48 8b 74 24 10 mov 0x10(%rsp),%rsi d: e8 46 b3 e7 fc callq 0xfce7b358 12: 48 89 ef mov %rbp,%rdi 15: e8 8e 2a e8 fc callq 0xfce82aa8 1a: 80 e7 02 and $0x2,%bh 1d: 74 06 je 0x25 1f: e8 c4 25 0c fd callq 0xfd0c25e8 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 79 78 dd fc callq 0xfcdd78a8 <-- trapping instruction 2f: 65 8b 05 6a 25 bf 7b mov %gs:0x7bbf256a(%rip),%eax # 0x7bbf25a0 36: 85 c0 test %eax,%eax 38: 74 07 je 0x41 3a: 5b pop %rbx 3b: 5d pop %rbp 3c: e9 .byte 0xe9 3d: 5b pop %rbx 3e: 29 00 sub %eax,(%rax)