CVE-2026-23274 netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtIDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call modtimer on timer-timer. If the label was created first by revision 1 with XTIDLETIMERALARM...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the xtIDLETIMER module allowing rev0 rules to reuse ALARM type timer labels. This could lead to a...

PT-2021-30630

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux...

PT-2021-30504

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.76 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For Linu...

PT-2021-30561

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.14.15 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For Linu...

PT-2021-26509

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.76 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For Linu...

PT-2021-26566

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.14.15 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For Linu...

PT-2021-26635

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15 Description: A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linu...

PT-2021-30316

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.76 Description A potential issue exists in the netfilter xt IDLETIMER module, where a panic can occur when the timer type has a garbage value. The actual impact and attack plausibility have not yet been...

PT-2021-30358

Name of the Vulnerable Software and Affected Versions Linux Kernel versions v5.7 through v5.14.14 Description A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations For...

PT-2021-26321

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.10.76 Description: A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations: For...

PT-2021-26363

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.14.15 Description: A potential issue exists where a panic occurs when timer type has a garbage value in xt IDLETIMER. The actual impact and attack plausibility have not yet been proven. Recommendations: For...