DocumentationOverview
About vulnerability
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.
Details
- Affected product:
- Debian 10 ELS
- Affected packages:
- linux @ 4.19.0
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 13 | Released |
13 kernels
|
| Ubuntu 24.04 | Planned | — |
| Ubuntu 24.04 AWS | Planned | — |
| Ubuntu 26.04 | Will Not Fix | — |