CVE-2026-64015
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)
security/keys: fix missed RCU read section on lookup
In the Linux kernel, the following vulnerability has been resolved: security/keys: fix missed RCU read section on lookup Nicholas Carlini reports that the keyring code calls assoc_array_find() in find_key_to_update() without holding the RCU read lock, while the assoc_array_gc() code really is designed around removing the node from the tree and then freeing it after an RCU grace-period. The regular key handling doesn't see this because holding the keyring semaphore hides any lifetime issues, but the persistent key handling uses a different model. Instead of extending the keyring locking, just do the simple RCU locking that the assoc_array was designed for.
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) |
|---|---|---|---|---|---|
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | 4c5d407ba3ff7f30561ff73ba1b07ed70c864edc | Unavailable | None listed |
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | cefa4265b11176c897a7d9e8e54d89e3701c5584 | Unavailable | None listed |
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | 5659e6923cb72f8e18e8b539109ab512455fe195 | Unavailable | None listed |
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | 50bb3435a5e627bfbdc52eb4536f49f88b3486b8 | Unavailable | None listed |
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | 66288dcadf80974436250e9f70ed848836b835b5 | Unavailable | None listed |
| b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 | affected | git | 43a1e3744548e6fd85873e6fb43e293eb4010694 | 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) |
|---|---|---|---|---|---|
| 3.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.13 | Unavailable | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.142 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.92 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.34 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.11 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |