Description
In the Linux kernel, the following vulnerability has been resolved:
s390/vfio_ccw: Ensure first IDAW remains constant
The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full IDAL.
Verify that the address found in the first IDAW is unchanged between reads, to ensure a consistent set of IDAWs being worked with.
Metrics
CVSS 3.1 9.3/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < 5b7c23440343e336259cd45017cc901a744c41b0; >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < 460b977a4e71cc319fdadf91c193ec3beaa57263; >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < 0d46c2565f173bcddcdcaf44a4f69789a20535e2; >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < 08ef2a82115690d6e229615872ac1731af732497; >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < fc59e9482117ebdccd6dc7fa8082f8b980fd021e; >= 01aa26c672c0eb771de4aaa2a8ccf6055778887b, < 565bef268d75bf7df665bce6923a88cd0eb74592 |
| Linux | Linux | 5.3 |
References
- https://git.kernel.org/stable/c/08ef2a82115690d6e229615872ac1731af732497
- https://git.kernel.org/stable/c/0d46c2565f173bcddcdcaf44a4f69789a20535e2
- https://git.kernel.org/stable/c/460b977a4e71cc319fdadf91c193ec3beaa57263
- https://git.kernel.org/stable/c/565bef268d75bf7df665bce6923a88cd0eb74592
- https://git.kernel.org/stable/c/5b7c23440343e336259cd45017cc901a744c41b0
- https://git.kernel.org/stable/c/fc59e9482117ebdccd6dc7fa8082f8b980fd021e
Timeline
- Published
- Aug 26, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received