CVE-2026-80548
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/vfio_ccw: Selectively expand io_mutex
In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Selectively expand io_mutex The io_mutex was defined to serialize the io_regions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of races that are possible, the choices are either to: A) expand the scope of io_mutex to close these remaining windows, or B) reduce the scope of io_mutex to just io_region, and introduce a new lock mechanism for the remaining I/O resources This patch implements A, since B brings with it a lot more interactions that would need to be tracked and kept in a correct hierarchy. It also takes advantage of the workqueue element for cp_free() that now gets called out of fsm_notoper(), which could be invoked out of an interrupt context and thus cannot acquire a mutex itself.
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) |
|---|---|---|---|---|---|
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | dab6a6627b0b0cce23653e99c7b0bf8c6cfd82e0 | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | 56d7488533ceac4e986e96e15c9e487a2245bc01 | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | f72a51810d49411bd8cad0c2df8592320a2fe5cc | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | 2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | b6aecea4b2b246f9fbd98a5712daa1193a60818e | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | 2a5ac0c0f1f7da33929211a2e41911bf72ee35d8 | Unavailable | None listed |
| 4f76617378ee97c557b526cb58d3c61eb0a9c963 | affected | git | 34f4feff3e90bd09308fad0974e97113b23b812a | 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) |
|---|---|---|---|---|---|
| 5.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.2 | Unavailable | None listed |
| 5.15.218 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.185 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.153 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.105 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.46 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.10 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |