Description
In the Linux kernel, the following vulnerability has been resolved:
s390/vfio-ap: fix memory leak in vfio_ap device driver
The device release callback function invoked to release the matrix device uses the dev_get_drvdata(device *dev) function to retrieve the pointer to the vfio_matrix_dev object in order to free its storage. The problem is, this object is not stored as drvdata with the device; since the kfree function will accept a NULL pointer, the memory for the vfio_matrix_dev object is never freed.
Since the device being released is contained within the vfio_matrix_dev object, the container_of macro will be used to retrieve its pointer.
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 1fde573413b549d52183382e639c1d6ce88f5959, < 5195de1d5f66b276683240a896783f7f43c4f664; >= 1fde573413b549d52183382e639c1d6ce88f5959, < ee17dea3072dec0bc34399a32fa884e26342e4ea; >= 1fde573413b549d52183382e639c1d6ce88f5959, < aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749; >= 1fde573413b549d52183382e639c1d6ce88f5959, < 6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67; >= 1fde573413b549d52183382e639c1d6ce88f5959, < 7b6a02f5bf15931464c79dfd487c57f76aae3496; >= 1fde573413b549d52183382e639c1d6ce88f5959, < 8f8cf767589f2131ae5d40f3758429095c701c84 |
| Linux | Linux | 4.20 |
References
- https://git.kernel.org/stable/c/5195de1d5f66b276683240a896783f7f43c4f664
- https://git.kernel.org/stable/c/6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67
- https://git.kernel.org/stable/c/7b6a02f5bf15931464c79dfd487c57f76aae3496
- https://git.kernel.org/stable/c/8f8cf767589f2131ae5d40f3758429095c701c84
- https://git.kernel.org/stable/c/aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749
- https://git.kernel.org/stable/c/ee17dea3072dec0bc34399a32fa884e26342e4ea
Timeline
- Published
- Dec 8, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Deferred