The vulnerability of the `match_char` function in the Linux operating system’s kernel allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the matchchar function in the Linux operating system’s kernel is related to reading data beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

CLSA-2026-1780132171 Fix of 25 CVEs

CVE-2025-68724 - crypto: asymmetrickeys - prevent overflow in asymmetrickeygenerateid CVE-2025-68724 CVE-2025-71196 - phy: stm32-usphyc: Fix off by one in probe CVE-2025-71196 CVE-2026-23033 - dmaengine: omap-dma: fix dmapool resource leak in error paths CVE-2026-23033 CVE-2026-23049 -...

apparmor: fix side-effect bug in match_char() macro usage

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SUSE CVE-2026-23406

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix side-effect bug in matchchar macro usage The matchchar macro evaluates its character parameter multiple times when traversing differential encoding chains. When invoked with str++, the string pointer advances on eac...

CVE-2026-23406

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix side-effect bug in matchchar macro usage The matchchar macro evaluates its character parameter multiple times when traversing differential encoding chains. When invoked with str++, the string pointer advances on eac...

CVE-2026-23406

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix side-effect bug in matchchar macro usage The matchchar macro evaluates its character parameter multiple times when traversing differential encoding chains. When invoked with str++, the string pointer advances on eac...

CVE-2026-23406 apparmor: fix side-effect bug in match_char() macro usage

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix side-effect bug in matchchar macro usage The matchchar macro evaluates its character parameter multiple times when traversing differential encoding chains. When invoked with str++, the string pointer advances on eac...

CVE-2026-23406

CVE-2026-23406 concerns the AppArmor Linux kernel module. The issue arises in the DFA matching logic used during file path checks, where the macro match_char() can evaluate its character parameter multiple times when traversing differential encoding chains. If invoked with *str++, the string poin...

CVE-2026-23406 apparmor: fix side-effect bug in match_char() macro usage

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix side-effect bug in matchchar macro usage The matchchar macro evaluates its character parameter multiple times when traversing differential encoding chains. When invoked with str++, the string pointer advances on eac...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a side-effect error in the matchchar macro, potentially leading to out-of-bounds reading...