CVE-2026-45983
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: never defer requests during idmap lookup
In the Linux kernel, the following vulnerability has been resolved: nfsd: never defer requests during idmap lookup During v4 request compound arg decoding, some ops (e.g. SETATTR) can trigger idmap lookup upcalls. When those upcall responses get delayed beyond the allowed time limit, cache_check() will mark the request for deferral and cause it to be dropped. This prevents nfs4svc_encode_compoundres from being executed, and thus the session slot flag NFSD4_SLOT_INUSE never gets cleared. Subsequent client requests will fail with NFSERR_JUKEBOX, given that the slot will be marked as in-use, making the SEQUENCE op fail. Fix this by making sure that the RQ_USEDEFERRAL flag is always clear during nfs4svc_decode_compoundargs(), since no v4 request should ever be deferred.
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) |
|---|---|---|---|---|---|
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | b9abb760db20504240a7147f27934d900cd80b23 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | 3a72c7dedc99b321e0f267e4e999e5baf07c4593 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | 99e17b20fddac19a228d213e00f6b9e1c10daff9 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | 243f71ed873ff3feeb6f9b5cb145d63f7188b4c4 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | 063a6f22478ef929625000a2caf54667725c1dfd | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | d75ec4504a4340b033b15cad0303988b3089dd93 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | 8dff54fe88c0dcd4c55bff9fc2fa6ca968290826 | Unavailable | None listed |
| 2f425878b6a71571341dcd3f9e9d1a6f6355da9c | affected | git | f9c206cdc4266caad6a9a7f46341420a10f03ccb | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.30 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.30 | Unavailable | None listed |
| 5.10.252 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.202 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.165 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.128 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.75 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.14 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.4 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |