HighCVENVD — high/critical CVEs (rolling 7d)· 1 Apr 2026

CVE-2026-23408 — In the Linux kernel, the following vulnerability has been resolved: apparmor:…

Severity: High · Kind: Vulnerability

Plain-English summary on the way

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From the source

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix double free of ns_name in aa_replace_profiles() if ns_name is NULL after 1071 error = aa_unpack(udata, &lh, &ns_name); and if ent->ns_name contains an ns_name in 1089 } else if (ent->ns_name) { then ns_name is assigned the ent->ns_name 1095 ns_name = ent->ns_name; however ent->ns_name is freed at 1262 aa_load_ent_free(ent); and then again when freeing ns_name at 1270 kfree(ns_name); Fix this by NULLing out ent->ns_name after it is transferred to ns_name ")

Vulnerability facts

CVE
CVE-2026-23408
CVSS
7.8

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.