CVE-2024-43819
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
36/100
Published: 2024-08-17
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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]
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 27e0393f15fc8bc855c6a888387ff5ffd2181089 < 8a1bbff443a5a22c466d11cbefca9cb361306a9b |
| Linux | Linux | 27e0393f15fc8bc855c6a888387ff5ffd2181089 < 705a8b8cc5a44b206096abb1bfdc8bc43b3c75c7 |
| Linux | Linux | 27e0393f15fc8bc855c6a888387ff5ffd2181089 < 49c9945c054df4c22008e2bf87ca74d3e2507aa6 |
| Linux | Linux | 27e0393f15fc8bc855c6a888387ff5ffd2181089 < 7816e58967d0e6cadce05c8540b47ed027dc2499 |
| Linux | Linux | 3.4 |
| linux | linux_kernel | 3.4 – 6.10.3 |