apparmor: fix use-after-free in rawdata dedup loop

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SUSE CVE-2026-63827

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

CVE-2026-63827

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

CVE-2026-63827 apparmor: fix use-after-free in rawdata dedup loop

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

CVE-2026-63827 apparmor: fix use-after-free in rawdata dedup loop

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

CVE-2026-63827

Root cause: Linux kernel AppArmor uses a use-after-free in the rawdata dedup loop (aa_replace_profiles) due to unsafe refcount handling when traversing ns->rawdata_list. The dedup path calls aa_get_profile_loaddata() which has plain kref_get() semantics, allowing a zero counter to be dereferen...

EUVD-2026-45493

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to existing profiles. Per the kernel-doc on struct aaloaddata, list...

PT-2026-61143

Name of the Vulnerable Software and Affected Versions Linux kernel version 7.1-rc5 Description A use-after-free issue exists in the AppArmor module of the Linux kernel. The aa replace profiles function iterates through the ns-rawdata list to deduplicate incoming policy blobs against existing...

Linux Distros Unpatched Vulnerability : CVE-2026-63827

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - apparmor: fix use-after-free in rawdata dedup loop aareplaceprofiles walks ns-rawdatalist to dedup the incoming policy blob against entries already attached to...