CVE-2026-74263
Last modified
CVE-2026-74263 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
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
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 7edd4db82f9429591de10be4c904c817f12ba029; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 112490467586146d323cb7230b1d72137e36900c; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < f7aebaee2961bfcb86f282202d3dbd9b69db1a7c; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095; >= 36bd28c1cb0dbf48645cfe43159907fb3253b33a, < 05f789fa90d95d5771230e78453cedff2486039d |
| Linux | Linux | 6.4 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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