Description
In the Linux kernel, the following vulnerability has been resolved:
net: wwan: t7xx: check skb_clone in control TX
t7xx_port_ctrl_tx() clones each skb fragment before passing it to the port transmit path. The clone is used immediately to set cloned->len, so an skb_clone() failure results in a NULL pointer dereference.
Check the clone before using it. If previous fragments were already queued, preserve the driver's existing partial-write behavior by returning the number of bytes submitted so far.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 7edd4db82f9429591de10be4c904c817f12ba029; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 112490467586146d323cb7230b1d72137e36900c; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < f7aebaee2961bfcb86f282202d3dbd9b69db1a7c; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 05f789fa90d95d5771230e78453cedff2486039d |
| Linux | Linux | 6.4 |
References
- https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d
- https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c
- https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095
- https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029
- https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c
Timeline
- Published
- Aug 15, 2026
- Last modified
- Aug 17, 2026
- NVD status
- Received