CVE-2026-89673
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix XDR padding calculation in ff_encode_getdeviceinfo nfsd4_ff_encode_getdeviceinfo() computes the da_addr_body reservation as 16 + netid_len + addr_len, but the subsequent xdr_encode_opaque() calls emit 8 + round_up(netid_len, 4) + round_up(addr_len, 4) bytes. The mismatch means the declared da_addr_body length exceeds the actual encoded data by 2-8 bytes on every flexfile GETDEVICEINFO reply, leaking stale reply-page content to the client and mis-aligning the subsequent version list decode. Use xdr_align_size() for each string length to match what xdr_encode_opaque() actually writes.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| efcae97fa425ca6db9d126e37daccf2d7225cb09 | affected | git | 88bce7e326c368d7df15126ccac537e54bebd467 | Unavailable | None listed |
| efcae97fa425ca6db9d126e37daccf2d7225cb09 | affected | git | 74015b7be806ad9e21d46f7bd2831df280c6c783 | Unavailable | None listed |
| efcae97fa425ca6db9d126e37daccf2d7225cb09 | affected | git | 41ebca28e17f84293650598f86bd69532ec1a8e0 | Unavailable | None listed |
| efcae97fa425ca6db9d126e37daccf2d7225cb09 | affected | git | 62e5949f0dd5ec837af144860ff908369df4c7c9 | Unavailable | None listed |
| efcae97fa425ca6db9d126e37daccf2d7225cb09 | affected | git | 8b989aaec85e1293a871d602590c951fe44b8647 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.4.16 | affected | semver | 6.6.157 | Unavailable | None listed |
| 6.4.16 | affected | semver | 6.12.109 | Unavailable | None listed |
| 6.4.16 | affected | semver | 6.18.50 | Unavailable | None listed |
| 6.4.16 | affected | semver | 7.2.4 | Unavailable | None listed |
| 6.4.16 | affected | semver | 7.3 | Unavailable | None listed |