audit: type=1400 audit(1674033933.955:9): avc: denied { write } for pid=4239 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 Bluetooth: hci5: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.2:4211] Modules linked in: irq event stamp: 5133879 hardirqs last enabled at (5133878): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5133879): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5125270): [] irq_exit_rcu+0x11f/0x190 softirqs last disabled at (5125273): [] irq_exit_rcu+0x11f/0x190 CPU: 1 PID: 4211 Comm: syz-executor.2 Not tainted 6.2.0-rc4-next-20230117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc90 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 e6 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 de 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a30 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8444746b RDX: fffffbfff0b49155 RSI: 0000000000000004 RDI: ffffffff85a48aa0 RBP: ffffffff85a48aa0 R08: 0000000000000000 R09: ffffffff85a48aa3 R10: fffffbfff0b49154 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b49154 R14: 0000000000000001 R15: 1ffff1100d9e1347 FS: 00007f91d32fb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f606df6c718 CR3: 0000000015b6c000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:fib_magic.isra.0+0x9b/0x2f0 Code: f0 00 00 00 31 c0 e8 e4 e4 b5 fd 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 0f 85 37 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 16 <48> 8d ba 60 05 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 1f 02 RSP: 0018:ffff888042c0f760 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc900015e0000 RDX: ffff888014616000 RSI: ffffffff83939d8c RDI: 0000000000000018 RBP: 1ffff11008581eef R08: ffff88800e5db800 R09: 000000000a1414ac R10: 0000000000000018 R11: 0000000000000001 R12: 0000000000000018 R13: 0000000000000020 R14: ffff88800e5db800 R15: dffffc0000000000 fib_add_ifaddr+0x63a/0x750 fib_netdev_event+0x390/0x700 raw_notifier_call_chain+0xb7/0x110 call_netdevice_notifiers_info+0xb5/0x130 __dev_notify_flags+0x120/0x2d0 dev_change_flags+0x11b/0x180 devinet_ioctl+0x1512/0x1e00 inet_ioctl+0x345/0x390 sock_do_ioctl+0xd2/0x240 sock_ioctl+0x424/0x670 __x64_sys_ioctl+0x19e/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f91d5d85b19 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:00007f91d32fb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f91d5e98f60 RCX: 00007f91d5d85b19 RDX: 0000000020000000 RSI: 0000000000008914 RDI: 0000000000000003 RBP: 00007f91d5ddff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc17f095af R14: 00007f91d32fb300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4247 Comm: syz-executor.1 Not tainted 6.2.0-rc4-next-20230117 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_get_return_address+0x67/0xa0 Code: ff df 48 8d 6b 58 48 89 ea 48 c1 ea 03 80 3c 02 00 75 36 48 8b 7b 58 e8 47 11 0c 00 85 c0 74 cf 48 b8 00 00 00 00 00 fc ff df <48> 89 ea 48 c1 ea 03 80 3c 02 00 75 1c 48 8b 43 58 5b 5d e9 d5 dd RSP: 0018:ffff88806ce097a8 EFLAGS: 00000202 RAX: dffffc0000000000 RBX: ffff88806ce097c0 RCX: 0000000000000000 RDX: 1ffff1100d9c1303 RSI: ffff88801fca7e70 RDI: ffffffff8182e1c5 RBP: ffff88806ce09818 R08: ffffffff861044ec R09: ffffffff861044f0 R10: ffff88806ce09ff8 R11: ffff88806ce09800 R12: ffff88806ce09888 R13: 0000000000000000 R14: ffff8880450e1ac0 R15: ffffffff834dbd46 FS: 00007f606df8d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e4d0564648 CR3: 000000000f5a8000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_node_track_caller+0x53/0xb0 __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+0x274/0x8ff irq_exit_rcu+0x11f/0x190 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:do_splice_to+0x1bf/0x240 Code: 00 00 48 8b 9b c8 00 00 00 48 85 db 74 47 e8 28 8c b8 ff 4c 89 f9 45 89 f0 4c 89 e2 4c 89 ee 48 89 ef e8 84 98 b3 02 49 89 c7 0c 8c b8 ff 4c 89 f8 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffff88801fca7b60 EFLAGS: 00000286 RAX: fffffffffffffffc RBX: ffffffff8190ef20 RCX: ffffc900009da000 RDX: 0000000000040000 RSI: ffffffff8190f0dc RDI: 0000000000000005 RBP: ffff888042f1c500 R08: 0000000000000005 R09: 00000000fffffff2 R10: 00000000fffffffc R11: 0000000000000001 R12: ffff888041193400 R13: ffff88801fca7c30 R14: 0000000000000000 R15: fffffffffffffffc splice_direct_to_actor+0x2b0/0x8c0 do_splice_direct+0x1bc/0x290 do_sendfile+0xb1d/0x12c0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f6070a38b19 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:00007f606df8d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f6070b4c020 RCX: 00007f6070a38b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007f6070a92f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000fffffdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe192d2cff R14: 00007f606df8d300 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 e6 0a 00 00 jne 0xaf8 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 de 1f 00 00 jmpq 0x2006 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 e4 test %ah,%ah