CVE-2026-89761

A flaw was found in the Linux kernel's AppArmor security module. An out-of-bounds write vulnerability exists when null terminating a label vector due to improper memory allocation. An unprivileged local attacker can exploit this by writing to specific system files, potentially leading to a denial...

AZL-100347 CVE-2026-89761 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix out-of-bounds write when null terminating a label vec aavecunique null terminates at vecn - dups when VECFLAGTERMINATE is passed. If the components are all distinct no duplicates are dropped, dups is 0 and the...

DEBIAN-CVE-2026-89761

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix out-of-bounds write when null terminating a label vec aavecunique null terminates at vecn - dups when VECFLAGTERMINATE is passed. If the components are all distinct no duplicates are dropped, dups is 0 and the...

CVE-2026-89761

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix out-of-bounds write when null terminating a label vec aavecunique null terminates at vecn - dups when VECFLAGTERMINATE is passed. If the components are all distinct no duplicates are dropped, dups is 0 and the...

CVE-2026-89761

CVE-2026-89761 is an out-of-bounds write in the Linux kernel's AppArmor security module. The function aa_vec_unique() writes a null terminator one entry past the end of the label vector because vec_setup() fails to reserve space for it when all label components are distinct. An unprivileged local...

PT-2026-90477

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write occurs in the AppArmor module when null terminating a label vector. The aa vec unique function attempts to place a terminator at vecn when no duplicates are found,...