AZL-97359
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-97359.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-97359
- Upstream
- Published
- 2026-08-22T16:16:41Z
- Modified
- 2026-09-20T05:33:47Z
- Summary
- CVE-2026-74678 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()
When the interface has NETIF_F_SG enabled and skb_linearize() fails in ax88179_tx_fixup(), the function returns NULL without freeing the skb.
usbnet_start_xmit() treats a NULL return from tx_fixup() as a drop (info->flags does not set FLAG_MULTI_PACKET for this driver), jumping to the "drop" label where it does
if (skb) dev_kfree_skb_any(skb). Because tx_fixup() returned NULL, the local skb variable in usbnet_start_xmit() is NULL, so the original skb is never freed — a memory leak on every TX frame whose linearization fails (i.e. under memory pressure).Free the skb before returning, matching the error handling already used for the pskb_expand_head() failure path in the same function.
- References