Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-52902.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-52902
Upstream
Published
2024-10-21T18:15:15Z
Modified
2026-04-01T05:16:31.573909Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
CVE-2024-49938 affecting package kernel for versions less than 5.15.173.1-1
Details

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

wifi: ath9k_htc: Use __skbsetlength() for resetting urb before resubmit

Syzbot points out that skb_trim() has a sanity check on the existing length of the skb, which can be uninitialised in some error paths. The intent here is clearly just to reset the length to zero before resubmitting, so switch to calling __skbsetlength(skb, 0) directly. In addition, _skbsetlength() already contains a call to skbresettailpointer(), so remove the redundant call.

The syzbot report came from ath9khifusbregincb(), but there's a similar usage of skbtrim() in ath9khifusbrxcb(), change both while we're at it.

References

Affected packages

Azure Linux:2 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.15.173.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-52902.json"