Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - BluetoothL2CAP修复 l2cap_sock_ready_cb 上的 null-ptr-deref 使用 sk 指针前检查其是否为空。
    修复下列内容KASAN: null-ptr-deref in range [0x0000000000000260-0x0000000000000267] CPU: 0 UID: 0 PID: 5985 Comm: kworker/0:5 未受感染 7.0.0-rc4-00029-ga989fde763f4 #1 PREEMPT(full)硬件名称QEMU Standard PC (Q35 + ICH92009), BIOS 1.17.0-9.fc43 06/10/2025 Workqueue事件 l2cap_info_timeout RIP
    0010:kasan_byte_accessible+0x12/0x30 代码79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 0 0 <0f> df  b6 04 07 3c 08 0f 92 c0 c3 cc cce veth0_macvtap: entered promiscuous mode RSP: 0018:ffffc90006e0f808 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffffff89746018 RCX: 0000000080000001 RDX: 0000000000000000 RSI: ffffffff89746018 RDI:
    000000000000004c RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff8aae3e70 R12: 0000000000000000 R13: 0000000000000260 R14: 0000000000000260 R15:
    0000000000000001 FS: 0000000000000000(0000) GS:ffff8880983c2000(0000) knlGS:0000000000000000 CS:0010 DS:
    0000 ES: 0000 CR0: 0000000080050033 CR2: 00005582615a5008 CR3: 000000007007e000 CR4: 0000000000752ef0 PKRU: 55555554 Call Trace: <TASK> __kasan_check_byte+0x12/0x40 lock_acquire+0x79/0x2e0 lock_sock_nested+0x48/0x100 ? l2cap_sock_ready_cb+0x46/0x160 l2cap_sock_ready_cb+0x46/0x160 l2cap_conn_start+0x779/0xff0 __pfx_l2cap_conn_start+0x10/0x10 ? l2cap_info_timeout+0x60/0xa0 ?
    __pfx___mutex_lock+0x10/0x10 l2cap_info_timeout+0x68/0xa0 ? process_scheduled_works+0xa8d/0x18c0 process_scheduled_works+0xb6e/0x18c0 __pfx_process_scheduled_works+0x10/0x10 ? assign_work+0x3d5/0x5e0 worker_thread+0xa53/0xfc0 kthread+0x388/0x470 __pfx_worker_thread+0x10/0x10 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x51e/0xb90 ? __pfx_ret_from_fork+0x10/0x10 veth1_macvtap进入混杂模式 ?
    __switch_to+0xc7d/0x1450 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> 链接的模块
    ---[ 结束跟踪 0000000000000000 ]--- batman_advbatadv0: 接口已激活 batadv_slave_0 batman_adv
    batadv0接口已激活batadv_slave_1 netdevsim netdevsim7 netdevsim0设置 [1, 0] type 2 family 0 端口 6081 - 0 netdevsim netdevsim7 netdevsim1设置 [1, 0] type 2 family 0 端口 6081 - 0 netdevsim netdevsim7 netdevsim2设置 [1, 0] type 2 family 0 端口 6081 - 0 netdevsim2 0] type 2 family 0 端口 6081 - 0 netdevsim netdevsim7 netdevsim3set [1, 0] type 2 系列 0 端口 6081 - 0 RIP0010:kasan_byte_accessible+0x12/0x30 代码79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cce ieee89211选择的速率控制phy算法“minstrel_ht”RSP
    0018:ffffc90006e0f808 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffffff89746018 RCX: 0000000080000001 RDX: 0000000000000000 RSI: ffffffff89746018 RDI: 000000000000004c RBP: 0000000000000000 R08:
     R090000000000000001  : 0000000000000000 R10: dffffc0000000000 R11: ffffffff8aae3e70 R12: 0000000000000000 R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880983c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES0000 CR00000000080050033 CR2
    00007f7e16139e9c CR3: 000000000e74e000 CR4: 0000000000752ef0 PKRU: 55555554 内核错误 - 未同步
    致命异常 (CVE-2026-31510)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2026-31510

medium Nessus 插件 ID 309756

版本 1.21