Rocky Linux 9.6 [TuxCare] 安全性更新:kernel / kernel-abi-stablelists / kernel-core / etc (ALMALINUX9.6:CLSA-2026:1783793262)

high Nessus Plugin ID 359559

概要

Rocky Linux 主機缺少一或多個安全性更新。

說明

Rocky Linux 9.6 主機已安裝的套件會受到 TuxCare ALMALINUX9.6:CLSA-2026:1783793262 公告中提及的弱點影響。

- 已解決 Linux 核心中的下列弱點:rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when invoked from futex_requeue(). In the latter case waiter::task is not current, but remove_waiter() operates on current for the dequeue operation. That results in several problems: 1) the rbtree dequeue happens without waiter::task::pi_lock being held 2) the waiter task's pi_blocked_on state is not cleared, which leaves a dangling pointer primed for UAF around.
3) rt_mutex_adjust_prio_chain() operates on the wrong top priority waiter task Use waiter::task instead of current in all related operations in remove_waiter() to cure those problems. [ tglx: Fixup rt_mutex_adjust_prio_chain(), add a comment and amend the changelog ] (CVE-2026-43499)

請注意,Nessus 並未測試此問題,而是僅依據應用程式自我報告的版本號碼作出判斷。

解決方案

根據 TuxCare 公告 ALMALINUX9.6:CLSA-2026:1783793262 中的指引更新受影響的套件。

另請參閱

https://cve.tuxcare.com/els/releases/CLSA-2026:1783793262

http://www.nessus.org/u?3c8f3bae

Plugin 詳細資訊

嚴重性: High

ID: 359559

檔案名稱: tuxcare_rocky_linux_9.6_CLSA-2026-1783793262.nasl

版本: 1.2

類型: Local

已發布: 2026/10/1

已更新: 2026/10/2

支援的感應器: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

風險資訊

VPR

風險因素: Critical

分數: 9.5

百分位數: 99.87

Vendor

Vendor Severity: Important

CVSS v2

風險因素: Medium

基本分數: 6.8

時間性分數: 5.9

媒介: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS 評分資料來源: CVE-2026-43499

CVSS v3

風險因素: High

基本分數: 7.8

時間性分數: 7.5

媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:H/RL:O/RC:C

弱點資訊

必要的 KB 項目: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/OS/extended-third-party

可被惡意程式利用: true

可輕鬆利用: Exploits are available

修補程式發佈日期: 2026/7/11

弱點發布日期: 2026/5/21

參考資訊

CVE: CVE-2026-43499

CLSA: 2026:1783793262