CVE-2026-74678

CVE CVE-2026-74678EUVD EUVD-2026-64365Published 2026-08-22T15:32:46.000ZLast changed 2026-08-25T05:41:29.000ZCVSS 7.5

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <1f428e30947395d9b9aacee03e25a4e6cfcad7a4; patch: 0; patch: 6.12.104; 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b; patch: 6.18.45; patch: 6.1.183; patch: 6.6.152; patch: 7.2; 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <2be5091fa693b9119ad25a8bb8c149d236a23ade; 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <1c63303659a2264bd55d9813df74cb4caeed5922; 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <4039cd807a5a46dc5f7618fffae926b8ad8455eb; 16b1c4e01c89ba07367461e0bc4cb84993c2d027 <58733b1dd46bb231d9d279c132a20ee46da1b664; 5.17; patch: 7.1.9

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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