CVE-2026-93824
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)
tls: reject the combination of TLS and sockmap
In the Linux kernel, the following vulnerability has been resolved: tls: reject the combination of TLS and sockmap TLS and sockmap (BPF psock) integration hides a lot of latent bugs. Bugs which may be more or less relevant for real users but they are definitely exploitable. We could not find anyone actively using this integration so let's reject this config. Adding a TLS socket to a sockmap was already rejected by sk_psock_init() through the inet_csk_has_ulp() check. We need to reject the attempts to configure the TLS keys (rather than adding the ULP itself) because checking prior to the ULP installation is tricky without risking a race with sockmap getting added in parallel (sockmap does not hold the socket lock). This patch is a minimal rejection of the feature. Subsequent patch in the series will do a light dead code removal. Full cleanup would require a major rewrite of the Tx path, we don't need skmsg any more.
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) |
|---|---|---|---|---|---|
| d3b18ad31f93d0b6bae105c679018a1ba7daa9ca | affected | git | c4896592744f30ff026f799947c5978bcfd7c8c7 | Unavailable | None listed |
| d3b18ad31f93d0b6bae105c679018a1ba7daa9ca | affected | git | e26aa709454d48c3b3ef8d3100c8a04e7d9fd94e | Unavailable | None listed |
| d3b18ad31f93d0b6bae105c679018a1ba7daa9ca | affected | git | c3d4d537337f69e405a36fa561e7292ee4148bf7 | Unavailable | None listed |
| d3b18ad31f93d0b6bae105c679018a1ba7daa9ca | affected | git | a08e780b6cc1153cbff8be55de9ec9da809e344f | Unavailable | None listed |
| d3b18ad31f93d0b6bae105c679018a1ba7daa9ca | affected | git | 460e6486617c17dd19abe8f3fc67d9a6fa25f8ca | 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) |
|---|---|---|---|---|---|
| 4.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.20 | Unavailable | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |