Updated: 2026-02-27 04:28:27.144274
Description:
In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value. nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Released | CLSA-2026:1771239384 | 2026-02-16 15:29:45 | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | In Testing | 2026-02-21 13:02:35 | ||
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | In Testing | 2026-02-19 12:17:43 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Needs Triage | 2026-02-04 08:56:19 | ||
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.8 | HIGH | Needs Triage | 2026-02-04 09:16:36 |