CVE-2026-68423
CVE-2026-68423: 1 tracked advisory record across Red Hat. Compare vendor sources.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-68423] fix use-after-free in mtd_virt_concat_destroy
CVE-2026-68423Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: mtd: virt_concat: fix use-after-free in mtd_virt_concat_destroy() mtd_concat_destroy() frees item->concat so calling mtd_virt_concat_put_mtd_devices(item->concat) after that leads to a use-after-free. The `mtd_virt_concat_destroy()` function incorrectly calls `mtd_virt_concat_put_mtd_devices()` after `mtd_concat_destroy()` has already freed the associated memory. This use-after-free vulnerability can lead to system instability or potentially enable a local attacker to achieve privilege escalation or arbitrary code execution. This issue affects virtual MTD concat devices. mtd_virt_concat_destroy() UAF by using freed concat pointer after mtd_concat_destroy(). Systems not using virt_concat MTD are not affected. Red Hat…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
Android app · Google Play
Monitor future Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.