Bug 2133483 (CVE-2022-42703)
| Summary: | CVE-2022-42703 kernel: use-after-free related to leaf anon_vma double reuse | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Marian Rehak <mrehak> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, alciregi, allarkin, aquini, asanders, bhu, brdeoliv, bskeggs, chwhite, crwood, ddepaula, debarbos, dvlasenk, ezulian, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lleshchi, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, sgrubb, steved, tyberry, vkumar, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Linux kernel 6.0-rc4 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A memory leak flaw with use-after-free capability was found in the Linux kernel. The VMA mm/rmap.c functionality in the is_mergeable_anon_vma() function continuously forks, using memory operations to trigger an incorrect reuse of leaf anon_vma. This issue allows a local attacker to crash the system.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-06-07 01:30:52 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2137553, 2137585, 2137586, 2137587, 2137588, 2138620, 2138621, 2183148, 2183149, 2183150, 2183151, 2210006, 2210007, 2210008, 2210009, 2210010, 2210011 | ||
| Bug Blocks: | 2133484 | ||
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Description
Marian Rehak
2022-10-10 15:26:48 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2137553] This was fixed for Fedora with the 5.19.7 stable kernel updates. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2023:1091 https://access.redhat.com/errata/RHSA-2023:1091 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2023:1092 https://access.redhat.com/errata/RHSA-2023:1092 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2148 https://access.redhat.com/errata/RHSA-2023:2148 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2458 https://access.redhat.com/errata/RHSA-2023:2458 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2736 https://access.redhat.com/errata/RHSA-2023:2736 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2951 https://access.redhat.com/errata/RHSA-2023:2951 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2023:3388 https://access.redhat.com/errata/RHSA-2023:3388 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-42703 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Extended Update Support Via RHSA-2023:4137 https://access.redhat.com/errata/RHSA-2023:4137 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Extended Update Support Via RHSA-2023:4138 https://access.redhat.com/errata/RHSA-2023:4138 |