Bug 2282345 (CVE-2021-47393)
| Summary: | CVE-2021-47393 kernel: hwmon: (mlxreg-fan) Return non-zero value when fan current state is enforced from sysfs | ||
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| Product: | [Other] Security Response | Reporter: | ybuenos |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, trathi, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 4.19.209, kernel 5.4.151, kernel 5.10.71, kernel 5.14.10, kernel 5.15 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A vulnerability was found in the Linux kernel's hwmon subsystem, specifically in the mlxreg-fan driver. The issue arises when the driver’s sysfs interface for controlling fan speed does not properly handle cases where the requested minimum fan speed exceeds the maximum allowable value. When the value provided is out of bounds, it results in a non-zero return code that prevents updates to thermal statistics, which can lead to a slab-out-of-bounds error, potentially causing system instability or crashes due to improper access to memory.
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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: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2282406 | ||
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Description
ybuenos
2024-05-22 08:55:40 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47393 is: CHECK Maybe valid. Check manually. with impact MODERATE (that is an approximation based on flags READ KASAN OOB ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later. This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2024:5065 https://access.redhat.com/errata/RHSA-2024:5065 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2024:6990 https://access.redhat.com/errata/RHSA-2024:6990 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:7001 https://access.redhat.com/errata/RHSA-2024:7001 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2024:6991 https://access.redhat.com/errata/RHSA-2024:6991 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:7000 https://access.redhat.com/errata/RHSA-2024:7000 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2024:10262 https://access.redhat.com/errata/RHSA-2024:10262 |