net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.48 % · centile 41 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
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Description
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.
Références
- https://git.kernel.org/stable/c/83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b
- https://git.kernel.org/stable/c/1c63303659a2264bd55d9813df74cb4caeed5922
- https://git.kernel.org/stable/c/2be5091fa693b9119ad25a8bb8c149d236a23ade
- https://git.kernel.org/stable/c/58733b1dd46bb231d9d279c132a20ee46da1b664
- https://git.kernel.org/stable/c/4039cd807a5a46dc5f7618fffae926b8ad8455eb
- https://git.kernel.org/stable/c/1f428e30947395d9b9aacee03e25a4e6cfcad7a4
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-64365
- GCVE · GCVE-0-2026-74678
Avis du CERT-FR
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1090 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b ; affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 1c63303659a2264bd55d9813df74cb4caeed5922 ; affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 2be5091fa693b9119ad25a8bb8c149d236a23ade ; affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 58733b1dd46bb231d9d279c132a20ee46da1b664 ; affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 4039cd807a5a46dc5f7618fffae926b8ad8455eb ; affected 16b1c4e01c89ba07367461e0bc4cb84993c2d027 < 1f428e30947395d9b9aacee03e25a4e6cfcad7a4 |
| Linux · Linux | affected 5.17 ; unaffected 0 < 5.17 ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.152 ≤ 6.6.* ; unaffected 6.12.104 ≤ 6.12.* ; unaffected 6.18.45 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |