CVE-2026-43223
N/A
N/A
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < da524c939b1e5ba17f10db4bde4bdaf569ffcda6 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < cf459d6ffa5e150ef3744b897f936ff24b52bd15 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 77a63f8efc434ddb04667ed632aade58301a2f13 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 4ba5c7a1aade7090172cbffd4d120bf4cf5ccbde | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 58dd722b6c3debcddb4684fb256c90fee7f063e5 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 2011929f0e4cf6a0a34dd6205911b12276904453 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < 5f3ac816861c3b8a5d1a3645b17dc3a99d668d94 | affected |
| Linux | Linux | d855497edbfbf9e19a17f4a1154bca69cb4bd9ba < a8333c8262aed2aedf608c18edd39cf5342680a7 | affected |
| Linux | Linux | 2.6.18 | affected |
| Linux | Linux | 0 < 2.6.18 | unaffected |
| Linux | Linux | 5.10.252 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.202 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.165 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.128 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.75 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.16 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.6 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/da524c939b1e5ba17f10db4bde4bdaf569ffcda6
- https://git.kernel.org/stable/c/cf459d6ffa5e150ef3744b897f936ff24b52bd15
- https://git.kernel.org/stable/c/77a63f8efc434ddb04667ed632aade58301a2f13
- https://git.kernel.org/stable/c/4ba5c7a1aade7090172cbffd4d120bf4cf5ccbde
- https://git.kernel.org/stable/c/58dd722b6c3debcddb4684fb256c90fee7f063e5
- https://git.kernel.org/stable/c/2011929f0e4cf6a0a34dd6205911b12276904453
- https://git.kernel.org/stable/c/5f3ac816861c3b8a5d1a3645b17dc3a99d668d94
- https://git.kernel.org/stable/c/a8333c8262aed2aedf608c18edd39cf5342680a7
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