Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-49938

CVE-2024-49938MEDIUM

Linux Linux — wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0026   16.4     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    fb9987d0f748c983bb795a86f47522313f701a08 –  —
  Linux    2.6.35 –                                    4.19.323

TIMELINE
  Oct 21  Reserved by Linux
  Oct 21  Published (CNA: Linux)
  Oct 15  ENRICHED — CVE-2024-49938 (Linux). Received CVSS 5.5 and CPE data from NVD.

CWE-824 · CNA: Linux · CVSS v3.1 · 13 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k_htc: Use __skb_set_length() 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 __skb_set_length(skb, 0) directly. In addition, __skb_set_length() already contains a call to skb_reset_tail_pointer(), so remove the redundant call. The syzbot report came from ath9k_hif_usb_reg_in_cb(), but there's a similar usage of skb_trim() in ath9k_hif_usb_rx_cb(), change both while we're at it.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 21, 2024	Reserved	Reserved by Linux
October 21, 2024	Published	Published (CNA: Linux)
October 15, 2026	ENRICHED	ENRICHED — CVE-2024-49938 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	fb9987d0f748c983bb795a86f47522313f701a08	—
Linux	Linux	—	2.6.35	4.19.323

Weaknesses

CWE-824

References (13)

Authoritative record: CVE-2024-49938 at cve.org

Vendors: linux

Weaknesses: CWE-824

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-49938 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.