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CVE-2026-98066

Linux: ALSA: caiaq: Fix potential double-free at error path

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in75b20534d7a37e091db585f8b505a3b77b7e81a8Also 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8, 1dd715ca0568e4833ed5878f49b028b449941096 and 8 moreCVE List
Published25 Sep 2026Updated 19 Oct 2026CVE List

What fixes it

  • 75b20534d7a37e091db585f8b505a3b77b7e81a8LinuxCVE List
  • 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8LinuxCVE List
  • 1dd715ca0568e4833ed5878f49b028b449941096LinuxCVE List
  • 3b26ceef88c110f4d188387cffa0df78657be904LinuxCVE List
  • 5.10.271LinuxCVE List
  • 5.15.222LinuxCVE List
Show all 11 fixed versions

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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

ALSA: caiaq: Fix potential double-free at error path

The fix for caiaq driver's resource management to handle the errors tries to release the resources in a common destructor call, but as a sashiko review for another patch suggested, some of the audio resources such as URBs have been already freed, and this may lead to a double-free.

For addressing the double-free, call the common destructor function from each place, and assure that the resource pointers get cleared.

Text from CVE List

Affected versions 26

  • Linuxaffected: da938aa9fc7826901921dcea225948ab21a97e45 before ddfff1cec52b7deec6c770ba85de4dab6221d0a2CVE List
  • Linuxaffected: 09616e25f502080ba684fc7fcf959d1376ab756d before da93fd9002d980bb02b729c5d5aeefeb252dd110CVE List
  • Linuxaffected: b956e48371f2ff72b76be9a829800ecec963bd45 before b6cd6f1664a0bc8038b9baa7e6f5fe8e4142d056CVE List
  • Linuxaffected: f537e3ad69609f6924a4db6b4a7f6561f5288bdd before 75b20534d7a37e091db585f8b505a3b77b7e81a8CVE List
  • Linuxaffected: 6251e3e256337a30160ef59ab1580dde4d1acd28 before 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8CVE List
  • Linuxaffected: e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 before 1dd715ca0568e4833ed5878f49b028b449941096CVE List
  • Linuxaffected: 28abd224db4a49560b452115bca3672a20e45b2f before b629ae7b3eddc6812d5af3614b8c1bd76d65fa75CVE List
  • Linuxaffected: 28abd224db4a49560b452115bca3672a20e45b2f before 3b26ceef88c110f4d188387cffa0df78657be904CVE List
  • Linuxaffected: 096dd8519cf2f768e9e14f224b627f7aaee1a9c5CVE List
  • Linuxaffected: 5.10.258 before 5.10.271CVE List
  • Linuxaffected: 5.15.209 before 5.15.222CVE List
  • Linuxaffected: 6.1.175 before 6.1.189CVE List
  • Linuxaffected: 6.6.140 before 6.6.158CVE List
  • Linuxaffected: 6.12.86 before 6.12.111CVE List
  • Linuxaffected: 6.18.27 before 6.18.53CVE List
  • Linuxaffected: 7.0.4 before 7.1CVE List
  • Linuxaffected: 7.1CVE List
  • Linuxunaffected: all versions before 7.1CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.111 through 6.12.*CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2.7 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8