CVE-2026-71226
Fixed in a distro release EPSS <1%CVSS 7.3
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
Products: Stephan Muelle libkcapi, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Hardened Images, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | libkcapi | 1.5.1-1.el10_2 |
| AlmaLinux 10 | libkcapi-hasher | 1.5.1-1.el10_2 |
| AlmaLinux 10 | libkcapi-hmaccalc | 1.5.1-1.el10_2 |
| AlmaLinux 8 | libkcapi | 1.4.0-3.el8_10 |
| AlmaLinux 8 | libkcapi-hmaccalc | 1.4.0-3.el8_10 |
| AlmaLinux 9 | libkcapi | 1.4.0-3.el9_8 |
| AlmaLinux 9 | libkcapi-hmaccalc | 1.4.0-3.el9_8 |
| Alpine 3.21 | libkcapi | 1.5.1-r0 |
| Alpine 3.22 | libkcapi | 1.5.1-r0 |
| Alpine 3.23 | libkcapi | 1.5.1-r0 |
| Alpine 3.24 | libkcapi | 1.5.1-r0 |
| Debian 12 | libkcapi | no fix |
| Debian 13 | libkcapi | no fix |
| Debian 14 | libkcapi | 1.5.1-1 |
| Red Hat Enterprise Linux 10.2 | libkcapi | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-debuginfo | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-debugsource | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-hasher | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-hasher-debuginfo | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-hmaccalc | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-tests-debuginfo | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 10.2 | libkcapi-tools-debuginfo | 0:1.5.1-1.el10_2 |
| Red Hat Enterprise Linux 8 | libkcapi | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-debuginfo | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-debugsource | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-hmaccalc | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-hmaccalc-debuginfo | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-tests-debuginfo | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 8 | libkcapi-tools-debuginfo | 0:1.4.0-3.el8_10 |
| Red Hat Enterprise Linux 9 | libkcapi | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-debuginfo | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-debugsource | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-fipscheck-debuginfo | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-hmaccalc | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-hmaccalc-debuginfo | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-tests-debuginfo | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux 9 | libkcapi-tools-debuginfo | 0:1.4.0-3.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | libkcapi | 0:1.5.0-6.el10_0 |
| Red Hat hummingbird 1 | libkcapi | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-devel | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-fipscheck | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-hasher | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-hmaccalc | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-static | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-tests | 0:1.5.1-0.1.hum1 |
| Red Hat hummingbird 1 | libkcapi-tools | 0:1.5.1-0.1.hum1 |
| Rocky Linux 10 | libkcapi | 0:1.5.1-1.el10_2 |
| Rocky Linux 8 | libkcapi | 0:1.4.0-3.el8_10 |
| Rocky Linux 9 | libkcapi | 0:1.4.0-3.el9_8 |
| Ubuntu 18.04 LTS | libkcapi | no fix |
| Ubuntu 20.04 LTS | libkcapi | no fix |
| Ubuntu 22.04 LTS | libkcapi | no fix |
| Ubuntu 24.04 LTS | libkcapi | no fix |
| Ubuntu 26.04 LTS | libkcapi | no fix |
| Ubuntu 26.10 | libkcapi | no fix |
| Ubuntu Pro FIPS-preview 22.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS-updates 16.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS-updates 18.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS-updates 20.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS-updates 22.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS 16.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS 18.04 LTS | libkcapi | no fix |
| Ubuntu Pro FIPS 20.04 LTS | libkcapi | no fix |