xen: A guest started with Populated on Demand enabled (PoD) can attempt to reclaim pages which aren't regular guest RAM
CVE-2026-62434 is fixed in xen on 1 platform, first by SUSE-SU-2026:3409-1, released July 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.
A guest started with Populated on Demand enabled (PoD) can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| xen · Debian 12.15 (bookworm) | 4.17.7-0+deb12u1 | DEBIAN-CVE-2026-62434 | Aug 3, 2026 |
| xen · Debian 13.5 (trixie) | 4.20.3+127-gc42374a105-0+deb13u1 | DEBIAN-CVE-2026-62434 | Aug 3, 2026 |
| xen · Debian 14 | 4.20.3+127-gc42374a105-1 | DEBIAN-CVE-2026-62434 | Aug 3, 2026 |
| xen · sles 15.6 | 4.18.5_20-150600.3.53.3 | SUSE-SU-2026:3409-1 | Jul 29, 2026 |
| xen · sles 15.7 | 4.20.4_04-150700.3.46.1 | SUSE-SU-2026:4090-1 | Sep 8, 2026 |
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