Bug 2467059 (CVE-2026-43163)
| Summary: | CVE-2026-43163 kernel: md/bitmap: fix GPF in write_page caused by resize race | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | rhel-process-autobot, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the `bitmap_daemon_work()` and `__bitmap_resize()` functions execute concurrently, they can access memory pages that have already been freed. This can lead to a General Protection Fault (GPF), which causes the system to crash, resulting in a denial of service.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
|
Description
OSIDB Bzimport
2026-05-06 13:02:06 UTC
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2026050632-CVE-2026-43163-86e1@gregkh/T This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:19568 https://access.redhat.com/errata/RHSA-2026:19568 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2026:21209 https://access.redhat.com/errata/RHSA-2026:21209 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:21706 https://access.redhat.com/errata/RHSA-2026:21706 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:21745 https://access.redhat.com/errata/RHSA-2026:21745 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:22334 https://access.redhat.com/errata/RHSA-2026:22334 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:22900 https://access.redhat.com/errata/RHSA-2026:22900 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:22940 https://access.redhat.com/errata/RHSA-2026:22940 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:23224 https://access.redhat.com/errata/RHSA-2026:23224 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2026:25095 https://access.redhat.com/errata/RHSA-2026:25095 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Via RHSA-2026:26535 https://access.redhat.com/errata/RHSA-2026:26535 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:26563 https://access.redhat.com/errata/RHSA-2026:26563 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:38492 https://access.redhat.com/errata/RHSA-2026:38492 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2026:41236 https://access.redhat.com/errata/RHSA-2026:41236 |