CVE-2026-80543
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)
s390/zcrypt: Pad trailing CCA or EP11 message with zeros
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Pad trailing CCA or EP11 message with zeros The both functions xcrb_msg_to_type6cprb_msgx() and xcrb_msg_to_type6_ep11cprb_msgx() copy the user space message into a kernel buffer based on the message length. But on further processing the message is supposed to be 4 byte length adjusted. Thus up to 3 bytes of uninitialized kernel memory are forwarded to further processing steps and may unwanted expose kernel memory to the crypto card firmware. This patch contains code to pad the gap between user space copied message and message buffer length sent down to further processing of the CCA or EP11 message to zeros.
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) |
|---|---|---|---|---|---|
| 20b0b0159390fa5c00a435195649680fefda81e0 | affected | git | 44e61f1834831f873af5a4fec5a5e432b929c6a2 | Unavailable | None listed |
| e2c6d91eb8b1533753755f07803e47eceed263d0 | affected | git | 2db92a56b000173d332b6c30f38a5a4444e4355a | Unavailable | None listed |
| e2c6d91eb8b1533753755f07803e47eceed263d0 | affected | git | eb363254472493e3458156fc11fd56dca92f4333 | Unavailable | None listed |
| f9da85d4780515f65983e0af151458599adaef3d | affected | git | Unavailable | Unavailable | None listed |
| 6.12.114 | affected | semver | 6.13 | 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) |
|---|---|---|---|---|---|
| 7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 7.1 | Unavailable | None listed |
| 7.1.10 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |