CVE-2026-80843
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)
xfrm: fix xfrm_state_construct() auth-trunc leak
In the Linux kernel, the following vulnerability has been resolved: xfrm: fix xfrm_state_construct() auth-trunc leak attach_auth_trunc() can allocate x->aalg while leaving x->props.aalgo at zero when the selected auth algorithm has no sadb_alg_id. One real case is cmac(aes). xfrm_state_construct() then treats !x->props.aalgo as "no auth algorithm attached yet" and calls attach_auth(). That overwrites x->aalg and loses the first allocation. Any later failure or teardown only frees the replacement pointer. Check whether x->aalg is already attached instead of inferring that state from x->props.aalgo.
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) |
|---|---|---|---|---|---|
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | 958ae9f261319e1cdc44879886bcda2263258cca | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | fb7f3e74789a3c89647f4eb768f6dfaf4a751e72 | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | ba0c110c205855b3f1e3130d8c0fdb484d704c8c | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | c8837bbe792257af547fd1c0252553ce13148795 | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | 71d42da01740ec6557837bebec0bc48cfc3b4c39 | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | cf67361e78dca488d6e4df8396a53e6745a3a80e | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | 37426395cb90ef217beec8407a14bd82153793d3 | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | be19d20e53a239572bb2a28efcc1cd2b069b1ef9 | Unavailable | None listed |
| 4447bb33f09444920a8f1d89e1540137429351b6 | affected | git | c12cbf56320fb633484ee0ca1fb7d68d6b64b213 | 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) |
|---|---|---|---|---|---|
| 2.6.33 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.33 | Unavailable | None listed |
| 5.10.269 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.220 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.187 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.156 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.108 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.49 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.13 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2.3 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |