Bug 2278960 (CVE-2022-48703)

Summary: CVE-2022-48703 kernel: thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR
Product: [Other] Security Response Reporter: Marco Benatto <mbenatto>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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, scweaver, sidakwo, sukulkar, tglozar, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 5.19.9, kernel 6.0 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Linux kernel in the `thermal/int340x_thermal` driver. This issue occurs when the Global Device Data Vault (GDDV) returns a zero-length buffer, causing the `kmemdup()` function to return a `ZERO_SIZE_PTR` (0x10), leading to a NULL pointer dereference in `data_vault_read()`, potentially causing a kernel crash. The issue has been fixed by adding checks for `ZERO_SIZE_PTR` or `NULL` using the `ZERO_OR_NULL_PTR()` macro.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2279002    

Description Marco Benatto 2024-05-03 19:03:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR

The Linux kernel CVE team has assigned CVE-2022-48703 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050351-CVE-2022-48703-3099@gregkh/T
Comment 5 errata-xmlrpc 2024-11-12 09:26:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315