Bug 2281813 (CVE-2024-35941)

Summary: CVE-2024-35941 kernel: net: skbuff: add overflow debug check to pull/push helpers
Product: [Other] Security Response Reporter: Robb Gatica <rgatica>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
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, mcascell, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sdubroca, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 6.1.86, kernel 6.6.27, kernel 6.8.6, kernel 6.9 Doc Type: If docs needed, set a value
Doc Text:
[REJECTED CVE] A use-after-free vulnerability was identified in the Linux kernel's net subsystem, specifically in skbuff handling. The issue arises from an overflow of the skb->network_header (a u16 value), causing skb_network_offset(skb) to return a negative value. This results in the __skb_pull() function incorrectly adjusting skb->data to an invalid memory location outside the skb->head area. An attacker could exploit this flaw to cause memory corruption or crash the system, potentially leading to denial of service or other undefined behavior.
 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: 2281814    
Bug Blocks: 2282024    

Description Robb Gatica 2024-05-20 15:26:11 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: skbuff: add overflow debug check to pull/push helpers

The Linux kernel CVE team has assigned CVE-2024-35941 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051919-CVE-2024-35941-1a9e@gregkh/T
Comment 1 Robb Gatica 2024-05-20 15:26:46 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281814]
Comment 9 TEJ RATHI 2024-12-03 03:55:03 UTC 
This CVE has been rejected upstream: https://lore.kernel.org/linux-cve-announce/2024060439-REJECTED-571b@gregkh/