Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: kvm: s390: Reject memory region operations for ucontrol VMs This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2. [frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 27e0393f15fc8bc855c6a888387ff5ffd2181089 before 705a8b8cc5a44b206096abb1bfdc8bc43b3c75c7; affected 27e0393f15fc8bc855c6a888387ff5ffd2181089 before 49c9945c054df4c22008e2bf87ca74d3e2507aa6; affected 27e0393f15fc8bc855c6a888387ff5ffd2181089 before 7816e58967d0e6cadce05c8540b47ed027dc2499 |
| Linux / Linux | affected 3.4; unaffected 0 before 3.4; unaffected 6.6.160 through 6.6.*; unaffected 6.10.3 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/705a8b8cc5a44b206096abb1bfdc8bc43b3c75c7
- https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
- https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499
ADP enrichment
No English description supplied.
No references supplied.