Updated: 2025-12-24 11:34:21.649967
Description:
In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI x->id.spi == 0 means "no SPI assigned", but since commit 94f39804d891 ("xfrm: Duplicate SPI Handling"), we now create states and add them to the byspi list with this value. __xfrm_state_delete doesn't remove those states from the byspi list, since they shouldn't be there, and this shows up as a UAF the next time we go through the byspi list.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 0.0 |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 5.5 | MEDIUM | Released | CLSA-2026:1767864313 | 2026-01-08 16:16:54 | |
| CentOS 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | In Rollout | CLSA-2025:1766617167 | 2025-12-25 06:01:24 | |
| Oracle Linux 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Released | CLSA-2025:1766599987 | 2025-12-25 14:33:31 | |
| RHEL 7 ELS | kernel | 3.10.0 | 5.5 | MEDIUM | Released | CLSA-2025:1766600619 | 2025-12-25 14:33:09 |