CVE-2026-74678
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 83a765cbd7b4d11b0b9fa1bb9d941ae911a2159b | Unavailable | None listed |
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 1c63303659a2264bd55d9813df74cb4caeed5922 | Unavailable | None listed |
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 2be5091fa693b9119ad25a8bb8c149d236a23ade | Unavailable | None listed |
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 58733b1dd46bb231d9d279c132a20ee46da1b664 | Unavailable | None listed |
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 4039cd807a5a46dc5f7618fffae926b8ad8455eb | Unavailable | None listed |
| 16b1c4e01c89ba07367461e0bc4cb84993c2d027 | affected | git | 1f428e30947395d9b9aacee03e25a4e6cfcad7a4 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.152 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.104 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.45 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.9 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |