CVE-2026-80547
Published: August 29, 2026Last modified: August 29, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Implement a crw lock Unlike the channel_program struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a lock to manage the list of those payloads, to ensure they are read cohesively.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.182-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.103-r0) | |
| Stream | linux-lts | Fixed (6.18.46-r0) |
References
- https://git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61
- https://git.kernel.org/stable/c/16b0798024c0e9117e395829ddbbe70981c79d9c
- https://git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209
- https://git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b
- https://git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558
- https://git.kernel.org/stable/c/a3d60ae24183eee352c8e87a0ff94c97cd87f156
- https://git.kernel.org/stable/c/c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9