CVE-2026-43223

Summary

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

media: pvrusb2: fix URB leak in pvr2_send_request_ex

When pvr2_send_request_ex() submits a write URB successfully but fails to submit the read URB (e.g. returns -ENOMEM), it returns immediately without waiting for the write URB to complete. Since the driver reuses the same URB structure, a subsequent call to pvr2_send_request_ex() attempts to submit the still-active write URB, triggering a 'URB submitted while active' warning in usb_submit_urb().

Fix this by ensuring the write URB is unlinked and waited upon if the read URB submission fails.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < da524c939b1e5ba17f10db4bde4bdaf569ffcda6affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < cf459d6ffa5e150ef3744b897f936ff24b52bd15affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 77a63f8efc434ddb04667ed632aade58301a2f13affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 4ba5c7a1aade7090172cbffd4d120bf4cf5ccbdeaffected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 58dd722b6c3debcddb4684fb256c90fee7f063e5affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 2011929f0e4cf6a0a34dd6205911b12276904453affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 5f3ac816861c3b8a5d1a3645b17dc3a99d668d94affected
LinuxLinuxd855497edbfbf9e19a17f4a1154bca69cb4bd9ba < a8333c8262aed2aedf608c18edd39cf5342680a7affected
LinuxLinux2.6.18affected
LinuxLinux0 < 2.6.18unaffected
LinuxLinux5.10.252 <= 5.10.*unaffected
LinuxLinux5.15.202 <= 5.15.*unaffected
LinuxLinux6.1.165 <= 6.1.*unaffected
LinuxLinux6.6.128 <= 6.6.*unaffected
LinuxLinux6.12.75 <= 6.12.*unaffected
LinuxLinux6.18.16 <= 6.18.*unaffected
LinuxLinux6.19.6 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References