Riskcovery

CVE-2026-43255

wifi: libertas: fix WARNING in usb_tx_block

State
Published
Severity
Not scored
Published
May 6, 2026
Updated
May 11, 2026
Reserved
May 1, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: libertas: fix WARNING in usb_tx_block

The function usb_tx_block() submits cardp->tx_urb without ensuring that any previous transmission on this URB has completed. If a second call occurs while the URB is still active (e.g. during rapid firmware loading), usb_submit_urb() detects the active state and triggers a warning: 'URB submitted while active'.

Fix this by enforcing serialization: call usb_kill_urb() before submitting the new request. This ensures the URB is idle and safe to reuse.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before 498525d8358d6d20918787e59736d5b6a021e9fdAffected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before 2902a9b4415a6bafc9b1e5dd360f065d757a0bb7Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before 948a39c95d0f8d73722910f8cdb7b6e3e9206232Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before 5bfb25495e391a1be0db94b15715174fa06b93a1Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before b82073564373e68c6ae3a96039fae14cd002a496Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before 3308c7504e093b22e91a4468470309cee2e26b83Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before fc188b44547dea4e7350833171982a6312befde9Affected
  • 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 to before d66676e6ca96bf8680f869a9bd6573b26c634622Affected
LinuxLinux
  • 2.6.22Affected
  • before 2.6.22Not affected
  • 5.10.252 through 5.10.*Not affected
  • 5.15.202 through 5.15.*Not affected
  • 6.1.165 through 6.1.*Not affected
  • 6.6.128 through 6.6.*Not affected
  • 6.12.75 through 6.12.*Not affected
  • 6.18.16 through 6.18.*Not affected
  • 6.19.6 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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