The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - rcutorture: Fix rcutorture_one_extend_check() splat in RT kernels For built with CONFIG_PREEMPT_RT=y     kernels, running rcutorture tests resulted in the following splat: [ 68.797425]     rcutorture_one_extend_check during change: Current 0x1 To add 0x1 To remove 0x0 preempt_count() 0x0 [     68.797533] WARNING: CPU: 2 PID: 512 at kernel/rcu/rcutorture.c:1993     rcutorture_one_extend_check+0x419/0x560 [rcutorture] [ 68.797601] Call Trace: [ 68.797602] <TASK> [     68.797619] ? lockdep_softirqs_off+0xa5/0x160 [ 68.797631] rcutorture_one_extend+0x18e/0xcc0 [rcutorture     2466dbd2ff34dbaa36049cb323a80c3306ac997c] [ 68.797646] ? local_clock+0x19/0x40 [ 68.797659]     rcu_torture_one_read+0xf0/0x280 [rcutorture 2466dbd2ff34dbaa36049cb323a80c3306ac997c] [ 68.797678] ?
    __pfx_rcu_torture_one_read+0x10/0x10 [rcutorture 2466dbd2ff34dbaa36049cb323a80c3306ac997c] [ 68.797804] ?
    __pfx_rcu_torture_timer+0x10/0x10 [rcutorture 2466dbd2ff34dbaa36049cb323a80c3306ac997c] [ 68.797815] rcu-     torture: rcu_torture_reader task started [ 68.797824] rcu-torture: Creating rcu_torture_reader task [     68.797824] rcu_torture_reader+0x238/0x580 [rcutorture 2466dbd2ff34dbaa36049cb323a80c3306ac997c] [     68.797836] ? kvm_sched_clock_read+0x15/0x30 Disable BH does not change the SOFTIRQ corresponding bits in     preempt_count() for RT kernels, this commit therefore use softirq_count() to check the if BH is disabled.
    (CVE-2025-39745)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

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Linux Distros Unpatched Vulnerability : CVE-2025-39745

high Nessus Plugin ID 264721

Version 1.8

Version 1.7

Version 1.6

Version 1.2

Version 1.1

Version 1.8 Nov 23, 2025, 4:41 AM CVSS metrics ("CVSSv2 score" set to 6.3) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:M/Au:N/C:N/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202511230441
Version 1.7 Oct 28, 2025, 5:56 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202510281756
Version 1.6 Oct 27, 2025, 11:56 PM Detection (updated detection logic) Plugin Feed: 202510272356
Version 1.2 Sep 17, 2025, 9:14 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202509170914
Version 1.1 Sep 14, 2025, 2:50 PM New Plugin Feed: 202509141450