CVEvulnerability
CVE-2026-43223
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-06
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
Description
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 configurations
• linux linux kernel (>= 2.6.18 < 5.10.252)
• linux linux kernel (>= 5.11 < 5.15.202)
• linux linux kernel (>= 5.16 < 6.1.165)
• linux linux kernel (>= 6.2 < 6.6.128)
• linux linux kernel (>= 6.7 < 6.12.75)
• linux linux kernel (>= 6.13 < 6.18.16)
• linux linux kernel (>= 6.19 < 6.19.6)
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/2011929f0e4cf6a0a34dd6205911b12276904453 Patch
- https://git.kernel.org/stable/c/4ba5c7a1aade7090172cbffd4d120bf4cf5ccbde Patch
- https://git.kernel.org/stable/c/58dd722b6c3debcddb4684fb256c90fee7f063e5 Patch
- https://git.kernel.org/stable/c/5f3ac816861c3b8a5d1a3645b17dc3a99d668d94 Patch
- https://git.kernel.org/stable/c/77a63f8efc434ddb04667ed632aade58301a2f13 Patch
- https://git.kernel.org/stable/c/a8333c8262aed2aedf608c18edd39cf5342680a7 Patch
- https://git.kernel.org/stable/c/cf459d6ffa5e150ef3744b897f936ff24b52bd15 Patch
- https://git.kernel.org/stable/c/da524c939b1e5ba17f10db4bde4bdaf569ffcda6 Patch