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

Summary

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.

Timeline

1. Sep 25, 2026, 10:24 AM UTCCVE published
2. Oct 19, 2026, 9:13 AM UTCRecord last updated

Affected versions

• Linux Linux

  From da938aa9fc7826901921dcea225948ab21a97e45 · fixed in ddfff1cec52b7deec6c770ba85de4dab6221d0a2; From 09616e25f502080ba684fc7fcf959d1376ab756d · fixed in da93fd9002d980bb02b729c5d5aeefeb252dd110; From b956e48371f2ff72b76be9a829800ecec963bd45 · fixed in b6cd6f1664a0bc8038b9baa7e6f5fe8e4142d056; From f537e3ad69609f6924a4db6b4a7f6561f5288bdd · fixed in 75b20534d7a37e091db585f8b505a3b77b7e81a8; From 6251e3e256337a30160ef59ab1580dde4d1acd28 · fixed in 2883d65a3d9a8d9a682cdb003e6ab7fb28bb17f8; From e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 · fixed in 1dd715ca0568e4833ed5878f49b028b449941096; From 28abd224db4a49560b452115bca3672a20e45b2f · fixed in b629ae7b3eddc6812d5af3614b8c1bd76d65fa75; From 28abd224db4a49560b452115bca3672a20e45b2f · fixed in 3b26ceef88c110f4d188387cffa0df78657be904; From 5.10.258 · fixed in 5.10.271; From 5.15.209 · fixed in 5.15.222; From 6.1.175 · fixed in 6.1.189; From 6.6.140 · fixed in 6.6.158; From 6.12.86 · fixed in 6.12.111; From 6.18.27 · fixed in 6.18.53; From 7.0.4 · fixed in 7.1

• Linux Linux

  7.1

• KernelLinux

  fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7

References 8