CVE-2024-40989: KVM: arm64: Disassociate vcpus from redistributor region on teardown
First published: Fri Jul 12 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Disassociate vcpus from redistributor region on teardown When tearing down a redistributor region, make sure we don't have any dangling pointer to that region stored in a vcpu.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.1.96 | 6.1.96 |
| redhat/kernel | <6.6.36 | 6.6.36 |
| redhat/kernel | <6.9.7 | 6.9.7 |
| redhat/kernel | <6.10 | 6.10 |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 6.12.22-1 | |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8
- https://git.kernel.org/stable/c/152b4123f21e6aff31cea01158176ad96a999c76
- https://git.kernel.org/stable/c/48bb62859d47c5c4197a8c01128d0fa4f46ee58c
- https://git.kernel.org/stable/c/68df4fc449fcc24347209e500ce26d5816705a77
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:9315
- https://access.redhat.com/errata/RHSA-2024:11313
- https://access.redhat.com/errata/RHSA-2024:11483
- https://access.redhat.com/errata/RHSA-2024:11482
- https://bugzilla.redhat.com/show_bug.cgi?id=2297573
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-40989
- https://nvd.nist.gov/vuln/detail/CVE-2024-40989
- https://launchpad.net/bugs/cve/CVE-2024-40989
- https://security-tracker.debian.org/tracker/CVE-2024-40989
- https://ubuntu.com/security/CVE-2024-40989
- https://git.kernel.org/linus/0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-40989?
CVE-2024-40989 has been classified with a high severity rating due to its potential impact on system stability and security.
How do I fix CVE-2024-40989?
To fix CVE-2024-40989, update the Linux kernel to versions 6.1.96, 6.6.36, 6.9.7, 6.10 or any appropriate patched version provided by your distribution.
What systems are affected by CVE-2024-40989?
CVE-2024-40989 affects Linux kernel versions prior to the specified remediation versions, particularly in Red Hat and Debian distributions.
What are the consequences of not addressing CVE-2024-40989?
Failing to address CVE-2024-40989 could lead to system crashes and exploitation due to dangling pointers in virtual CPUs.
Is CVE-2024-40989 specific to any architecture?
Yes, CVE-2024-40989 specifically affects the arm64 architecture within the Linux kernel.
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