[ 66.093841][ T63] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.101663][ T34] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.116740][ T2036] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.124293][ T2036] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.299407][ T63] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.307326][ T63] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.315191][ T2044] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.328653][ T2044] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.336620][ T2044] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.345180][ T63] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 416.525632][ T2024] syz-executor.0 (2024) used greatest stack depth: 11016 bytes left [ 416.533788][ T2019] syz-executor.2 (2019) used greatest stack depth: 10968 bytes left [ 416.542422][ T2040] syz-executor.5 (2040) used greatest stack depth: 10856 bytes left Warning: Permanently added '10.128.1.136' (ED25519) to the list of known hosts. [ 443.944213][ T8346] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2108 jiffies s: 3577 root: 0x2/. [ 443.955900][ T8346] rcu: blocking rcu_node structures (internal RCU debug): [ 443.963008][ T8346] Sending NMI from CPU 0 to CPUs 1: [ 443.968216][ C1] NMI backtrace for cpu 1 [ 443.968226][ C1] CPU: 1 PID: 8711 Comm: syz-executor168 Not tainted 6.1.112-syzkaller #0 [ 443.968238][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 443.968243][ C1] RIP: 0010:__lock_acquire+0x142/0x4a0 [ 443.968260][ C1] Code: 00 00 31 f6 44 8b 54 24 68 48 8b 44 24 58 4c 8d 24 b6 89 d6 81 e6 ff 1f 00 00 4a 89 84 e3 10 0a 00 00 4e 89 b4 e3 18 0a 00 00 <4e> 89 ac e3 20 0a 00 00 41 c1 e7 0f 45 0f b7 cf 83 e5 03 c1 e5 10 [ 443.968268][ C1] RSP: 0018:ffffc90001a2f8d8 EFLAGS: 00000006 [ 443.968275][ C1] RAX: ffffffff82ac6b99 RBX: ffff88810bec9b40 RCX: 0000000000000000 [ 443.968282][ C1] RDX: 000000000000002b RSI: 000000000000002b RDI: 0000000000000003 [ 443.968288][ C1] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 [ 443.968293][ C1] R10: 0000000000000000 R11: ffff88810bec9b40 R12: 000000000000000f [ 443.968299][ C1] R13: 0000000000000000 R14: ffffffff839a8b10 R15: 0000000000000000 [ 443.968305][ C1] FS: 0000555563753380(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 [ 443.968314][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 443.968321][ C1] CR2: 00007f63f6fc8440 CR3: 000000010e68f000 CR4: 00000000003506e0 [ 443.968330][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 443.968335][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 443.968341][ C1] Call Trace: [ 443.968345][ C1] [ 443.968349][ C1] ? nmi_cpu_backtrace+0x1ba/0x240 [ 443.968360][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 443.968371][ C1] ? nmi_handle+0x96/0x1b0 [ 443.968383][ C1] ? nmi_handle+0x25/0x1b0 [ 443.968394][ C1] ? __lock_acquire+0x142/0x4a0 [ 443.968403][ C1] ? default_do_nmi+0x62/0x150 [ 443.968425][ C1] ? exc_nmi+0xa8/0x100 [ 443.968438][ C1] ? end_repeat_nmi+0x16/0x31 [ 443.968451][ C1] ? xa_find+0x79/0x170 [ 443.968464][ C1] ? __lock_acquire+0x142/0x4a0 [ 443.968473][ C1] ? __lock_acquire+0x142/0x4a0 [ 443.968482][ C1] ? __lock_acquire+0x142/0x4a0 [ 443.968491][ C1] [ 443.968494][ C1] [ 443.968497][ C1] lock_acquire+0xd2/0x1f0 [ 443.968506][ C1] ? xa_find+0x79/0x170 [ 443.968520][ C1] ? xa_find+0x79/0x170 [ 443.968532][ C1] xa_find+0x96/0x170 [ 443.968545][ C1] ? xa_find+0x79/0x170 [ 443.968558][ C1] ? devlinks_xa_find_get+0x28/0x260 [ 443.968571][ C1] ? xa_clear_mark+0x40/0x40 [ 443.968583][ C1] devlinks_xa_find_get+0x61/0x260 [ 443.968595][ C1] ? netlink_dump+0xf2/0x550 [ 443.968606][ C1] ? rcu_is_watching+0xc/0x40 [ 443.968621][ C1] devlink_nl_cmd_port_get_dumpit+0x52/0x270 [ 443.968633][ C1] ? netlink_dump+0xf2/0x550 [ 443.968642][ C1] ? __alloc_skb+0x2c4/0x370 [ 443.968651][ C1] netlink_dump+0x231/0x550 [ 443.968662][ C1] ? rcu_is_watching+0xc/0x40 [ 443.968676][ C1] __netlink_dump_start+0x2a9/0x370 [ 443.968686][ C1] ? devlink_nl_cmd_port_get_doit+0xb0/0xb0 [ 443.968698][ C1] genl_rcv_msg+0x4bf/0x610 [ 443.968709][ C1] ? devlink_nl_cmd_get_dumpit+0x240/0x240 [ 443.968721][ C1] ? devlink_nl_cmd_port_get_doit+0xb0/0xb0 [ 443.968733][ C1] ? genl_rcv_msg+0x610/0x610 [ 443.968743][ C1] ? devlink_nl_cmd_port_get_doit+0xb0/0xb0 [ 443.968754][ C1] ? genl_lock_done+0x60/0x60 [ 443.968766][ C1] netlink_rcv_skb+0x10a/0x1d0 [ 443.968775][ C1] ? genl_bind+0x1a0/0x1a0 [ 443.968787][ C1] genl_rcv+0x24/0x40 [ 443.968797][ C1] netlink_unicast+0x46d/0x530 [ 443.968807][ C1] netlink_sendmsg+0x57f/0x660 [ 443.968818][ C1] __sys_sendto+0x389/0x450 [ 443.968830][ C1] __x64_sys_sendto+0x24/0x30 [ 443.968839][ C1] do_syscall_64+0x3b/0xb0 [ 443.968851][ C1] ? clear_bhb_loop+0x45/0xa0 [ 443.968863][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 443.968875][ C1] RIP: 0033:0x7f53d836f3e3 [ 443.968887][ C1] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 80 3d c1 bc 07 00 00 41 89 ca 74 14 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 75 c3 0f 1f 40 00 55 48 83 ec 30 44 89 4c 24 [ 443.968895][ C1] RSP: 002b:00007ffd344c2438 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 443.968904][ C1] RAX: ffffffffffffffda RBX: 00007f53d83ed420 RCX: 00007f53d836f3e3 [ 443.968910][ C1] RDX: 0000000000000034 RSI: 00007f53d83ed470 RDI: 0000000000000004 [ 443.968915][ C1] RBP: 0000000000000004 R08: 00007ffd344c2454 R09: 000000000000000c [ 443.968921][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 443.968927][ C1] R13: 00007ffd344c25f0 R14: 00007f53d83ed470 R15: 0000000000000000 [ 443.968934][ C1]