netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.7'. watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.4:3959] Modules linked in: irq event stamp: 2358461 hardirqs last enabled at (2358460): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2358461): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2347780): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2347789): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 3959 Comm: syz-executor.4 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x369/0x2490 Code: ff df 4c 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e f7 16 00 00 41 c7 07 00 00 00 00 31 c0 48 83 c4 38 5b 5d 41 5c <41> 5d 41 5e 41 5f e9 1c 45 72 03 48 81 f9 00 b0 d5 86 0f 83 cb 02 RSP: 0018:ffff88806ce09628 EFLAGS: 00000292 RAX: 0000000000000001 RBX: ffffffff813f2300 RCX: ffffffff8683d701 RDX: ffff88806ce099b0 RSI: 0000000000000000 RDI: ffff88806ce09658 RBP: ffff88806ce096e0 R08: ffffffff8683d7ba R09: ffff88806ce09688 R10: 000000000003c001 R11: 0000000000023d12 R12: ffff88806ce09710 R13: ffff88806ce09690 R14: ffff88806ce099a8 R15: ffff88806ce09648 FS: 00007f540f7ed700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005000 CR3: 000000000b72e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node_noprof+0x14c/0x3e0 __alloc_skb+0x2ad/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+0x2e0/0x650 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+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 14 9a ab ff 4d 85 ed 74 06 e8 8a 62 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803f66f6f0 EFLAGS: 00000286 RAX: 000000000023d30b RBX: ffffea0000350b40 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81849d96 RBP: ffff888008fff3c0 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000000 R12: ffff88806ce41d20 R13: 0000000000000200 R14: ffffea0000359300 R15: ffff88800d42d8c0 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 alloc_buffer_head+0x24/0x130 folio_alloc_buffers+0x289/0x540 create_empty_buffers+0x30/0x460 ext4_block_write_begin+0x996/0xb20 ext4_da_write_begin+0x30e/0x880 generic_perform_write+0x284/0x7e0 ext4_buffered_write_iter+0x11d/0x3c0 ext4_file_write_iter+0x95e/0x18e0 vfs_write+0xbdb/0x10a0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5412298b19 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:00007f540f7ed188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f54123ac020 RCX: 00007f5412298b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000007 RBP: 00007f54122f2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0ea2c56f R14: 00007f540f7ed300 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-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x161/0x1b0 Code: 49 8d 04 2c 48 85 d2 75 b0 48 89 da 48 29 c2 e9 4c ff ff ff 48 85 d2 74 b6 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 a8 80 38 00 <74> f2 e9 77 ff ff ff b8 01 00 00 00 e9 ee fd fa 02 48 29 c3 48 89 RSP: 0018:ffff88806cf099c0 EFLAGS: 00000246 RAX: fffffbfff0c1b868 RBX: fffffbfff0c1b869 RCX: ffffffff8486d2bf RDX: fffffbfff0c1b869 RSI: 0000000000000004 RDI: ffffffff860dc340 RBP: fffffbfff0c1b868 R08: 0000000000000000 R09: fffffbfff0c1b868 R10: ffffffff860dc343 R11: 5050505001000011 R12: 1ffff1100d9e133d R13: 0000000000000003 R14: fffffbfff0c1b868 R15: ffff88806cf09a18 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563a4dcc28b0 CR3: 000000000d5ba000 CR4: 0000000000350ef0 Call Trace: queued_spin_lock_slowpath+0xaf/0xb60 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+0x2e0/0x650 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+0xc4/0x100 irq_exit_rcu+0x9/0x20 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 29 d0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff8880096cfe68 EFLAGS: 00000206 RAX: 000000000012adf5 RBX: 0000000000000001 RCX: ffffffff8484aaf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b0fca RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863fa390 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 Bluetooth: hci0: command tx timeout Bluetooth: hci2: command tx timeout Bluetooth: hci1: command tx timeout Bluetooth: hci0: command tx timeout Bluetooth: hci1: command tx timeout Bluetooth: hci2: command tx timeout Bluetooth: hci0: command tx timeout ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 4c 89 fa fisttps -0x6(%rcx,%rcx,4) 4: 48 c1 ea 03 shr $0x3,%rdx 8: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax c: 84 c0 test %al,%al e: 74 08 je 0x18 10: 3c 03 cmp $0x3,%al 12: 0f 8e f7 16 00 00 jle 0x170f 18: 41 c7 07 00 00 00 00 movl $0x0,(%r15) 1f: 31 c0 xor %eax,%eax 21: 48 83 c4 38 add $0x38,%rsp 25: 5b pop %rbx 26: 5d pop %rbp 27: 41 5c pop %r12 * 29: 41 5d pop %r13 <-- trapping instruction 2b: 41 5e pop %r14 2d: 41 5f pop %r15 2f: e9 1c 45 72 03 jmpq 0x3724550 34: 48 81 f9 00 b0 d5 86 cmp $0xffffffff86d5b000,%rcx 3b: 0f .byte 0xf 3c: 83 cb 02 or $0x2,%ebx