Bug 2078466 (CVE-2022-1462)
| Summary: | CVE-2022-1462 kernel: possible race condition in drivers/tty/tty_buffers.c | ||
|---|---|---|---|
| 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, bdettelb, bhu, bskeggs, chwhite, crwood, ddepaula, dvlasenk, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jch, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, kurathod, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, sbalasub, scweaver, security-response-team, steve.beattie, steved, vkumar, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.5 rc5 | Doc Type: | If docs needed, set a value |
| Doc Text: |
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-05-16 18:50:16 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: | 2078867, 2078868, 2078869, 2078870, 2090713 | ||
| Bug Blocks: | 2078422, 2078496 | ||
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Description
Marian Rehak
2022-04-25 12:05:53 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2090713] According to https://www.openwall.com/lists/oss-security/2022/04/21/1 this is actually a concurrency use-after-free in vgem_gem_dumb_create. Sorry, please ignore that. I'm totally confused. This was fixed in Fedora with the 5.5.5 stable kenrel updates. 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 bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-1462 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724 |