1227829 – (CVE-2024-40994) VUL-0: CVE-2024-40994: kernel: ptp: fix integer overflow in max_vclocks_store

Bug 1227829 (CVE-2024-40994) - VUL-0: CVE-2024-40994: kernel: ptp: fix integer overflow in max_vclocks_store

Summary: VUL-0: CVE-2024-40994: kernel: ptp: fix integer overflow in max_vclocks_store

Status:	NEW

Alias:	CVE-2024-40994

Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents (show other bugs)
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal
Target Milestone:	---
Assignee:	Kernel Bugs
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/413921/
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Reported:	2024-07-15 13:37 UTC by SMASH SMASH
Modified:	2024-07-15 14:15 UTC (History)
CC List:	1 user (show)

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Found By:	Security Response Team
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Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

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Description SMASH SMASH 2024-07-15 13:37:59 UTC

In the Linux kernel, the following vulnerability has been resolved:

ptp: fix integer overflow in max_vclocks_store

On 32bit systems, the "4 * max" multiply can overflow.  Use kcalloc()
to do the allocation to prevent this.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-40994
https://www.cve.org/CVERecord?id=CVE-2024-40994
https://git.kernel.org/stable/c/4b03da87d0b7074c93d9662c6e1a8939f9b8b86e
https://git.kernel.org/stable/c/666e934d749e50a37f3796caaf843a605f115b6f
https://git.kernel.org/stable/c/81d23d2a24012e448f651e007fac2cfd20a45ce0
https://git.kernel.org/stable/c/d50d62d5e6ee6aa03c00bddb91745d0b632d3b0f
https://git.kernel.org/stable/c/e1fccfb4638ee6188377867f6015d0ce35764a8e
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-40994.mbox