CVE-2026-68231

Summary

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

media: airspy: Return queued buffers on start_streaming() failure

The vb2 framework hands buffers to the driver via buf_queue() before calling start_streaming(). If start_streaming() returns an error without first returning those buffers via vb2_buffer_done(), vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued buffers leak.

airspy_start_streaming() returned -ENODEV early when the USB device had been disconnected (s->udev == NULL) without returning any buffers that buf_queue() had already accepted. Take v4l2_lock first and jump to the existing err_clear_bit label, which already drains s->queued_bufs via vb2_buffer_done(…, VB2_BUF_STATE_QUEUED) before unlocking.

This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo: Return queued buffers on start_streaming() failure").

Affected Software

VendorProductVersion RangeStatus
LinuxLinux634fe5033951b80ef4b98d8f047cb1083d29170d < 877686a74ecdc93dcaee09dbac566e819059c9e7affected
LinuxLinux634fe5033951b80ef4b98d8f047cb1083d29170d < cd42623d698b59f1fe5768f78a4101c28d5feb2eaffected
LinuxLinux634fe5033951b80ef4b98d8f047cb1083d29170d < 73bd2779865372b1017d4f555b45270aa2d0d710affected
LinuxLinux634fe5033951b80ef4b98d8f047cb1083d29170d < 170fcc945bc094b1c956bf555c070692826a3effaffected
LinuxLinux634fe5033951b80ef4b98d8f047cb1083d29170d < 04344d0b4929caa94c0df72f767752aa0935ef5daffected
LinuxLinux3.17affected
LinuxLinux0 < 3.17unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2-rc1 <= *unaffected

Weaknesses

References