CVE-2026-43223

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-06 12:16

Updated : 2026-06-17 10:49

NVD link : CVE-2026-43223

Mitre link : CVE-2026-43223

CVE.ORG link : CVE-2026-43223

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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