Bug 2278433 (CVE-2024-27047)

Summary: CVE-2024-27047 kernel: net: phy: fix phy_get_internal_delay accessing an empty array
Product: [Other] Security Response Reporter: Zack Miele <zmiele>
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, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 5.10.214, kernel 5.15.153, kernel 6.1.83, kernel 6.6.23, kernel 6.7.11, kernel 6.8.2, kernel 6.9-rc1 Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the Linux kernel's net driver phy_device.c in the phy_get_internal_delay() function, where a lack of proper checks can cause a potential NULL pointer dereference to occur when the function attempts to access an empty array. The error occurs if the driver calls phy_get_internal_delay() without defining delay_values and rx-internal-delay-ps or tx-internal-delay-ps is set to 0 in the device-tree. This flaw can lead to system instability.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2278434    
Bug Blocks: 2278552    

Description Zack Miele 2024-05-01 20:33:42 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: phy: fix phy_get_internal_delay accessing an empty array

The Linux kernel CVE team has assigned CVE-2024-27047 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050114-CVE-2024-27047-8aad@gregkh/T
Comment 1 Zack Miele 2024-05-01 20:34:16 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278434]