CVE-2026-43255
- Source
- https://cve.org/CVERecord?id=CVE-2026-43255
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43255.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-43255
- Downstream
- Related
- Published
- 2026-05-06T11:28:44.522Z
- Modified
- 2026-05-28T03:52:47.398353757Z
- Summary
- wifi: libertas: fix WARNING in usb_tx_block
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: libertas: fix WARNING in usbtxblock
The function usbtxblock() submits cardp->txurb 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), usbsubmit_urb() detects the active state and triggers a warning: 'URB submitted while active'.
Fix this by enforcing serialization: call usbkillurb() before submitting the new request. This ensures the URB is idle and safe to reuse.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43255.json" }- References
-
- https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7
- https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83
- https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd
- https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1
- https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232
- https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496
- https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622
- https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43255.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43255
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced876c9d3aeb989cf1961f2c228d309ba5dcfb1172Fixed498525d8358d6d20918787e59736d5b6a021e9fdFixed2902a9b4415a6bafc9b1e5dd360f065d757a0bb7Fixed948a39c95d0f8d73722910f8cdb7b6e3e9206232Fixed5bfb25495e391a1be0db94b15715174fa06b93a1Fixedb82073564373e68c6ae3a96039fae14cd002a496Fixed3308c7504e093b22e91a4468470309cee2e26b83Fixedfc188b44547dea4e7350833171982a6312befde9Fixedd66676e6ca96bf8680f869a9bd6573b26c634622
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced2.6.22Fixed5.10.252
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.202
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.165
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.128
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.75
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.16
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed6.19.6