CVE-2024-43819
- Source
- https://cve.org/CVERecord?id=CVE-2024-43819
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-43819.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-43819
- Downstream
BELL (1)
DEBIAN (1)
ECHO (1)
SUSE (11)
- Related
- Published
- 2024-08-17T09:21:40Z
- Modified
- 2026-11-01T02:33:51Z
- Summary
- kvm: s390: Reject memory region operations for ucontrol VMs
- Details
-
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]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43819.json" }- References
-
- https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
- https://git.kernel.org/stable/c/705a8b8cc5a44b206096abb1bfdc8bc43b3c75c7
- https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499
- https://git.kernel.org/stable/c/8a1bbff443a5a22c466d11cbefca9cb361306a9b
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43819.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-43819
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced27e0393f15fc8bc855c6a888387ff5ffd2181089Fixed8a1bbff443a5a22c466d11cbefca9cb361306a9bFixed705a8b8cc5a44b206096abb1bfdc8bc43b3c75c7Fixed49c9945c054df4c22008e2bf87ca74d3e2507aa6Fixed7816e58967d0e6cadce05c8540b47ed027dc2499