CVE-2026-46053

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error __rds_rdma_map() hands sg/pages ownership to the transport after get_mr() succeeds. If copying the generated cookie back to user space fails after that point, the error path must not free those resources again before dropping the MR reference. Remove the duplicate unpin/free from the put_user() failure branch so that MR teardown is handled only through the existing final cleanup path.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/033370ffb3c9c0264d19f8ba9ef769523266589a	Patch
https://git.kernel.org/stable/c/106dc689206610cfa2098f593fdd1e020c997835	Patch
https://git.kernel.org/stable/c/8141a2dc70080eda1aedc0389ed2db2b292af5bd	Patch
https://git.kernel.org/stable/c/8fdbb6262a4a3ed44a0830a7793903b54bb27bdc	Patch
https://git.kernel.org/stable/c/91a44b406bc1f9e1c5da0cb7d0d5991b43b79147	Patch
https://git.kernel.org/stable/c/b3cb8cae530b2727d8245684148bb49425f6765c	Patch
https://git.kernel.org/stable/c/d95cea9298be1ba8876e3f156be96d3a492085ca	Patch
https://git.kernel.org/stable/c/ec55a86f7fba7d9111df94b9c11a4755ed492995	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::::::::
	cpe:2.3:o:linux:linux_kernel:5.6:-::::::
	cpe:2.3:o:linux:linux_kernel:5.6:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.6:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.6:rc5::::::
	cpe:2.3:o:linux:linux_kernel:5.6:rc6::::::
	cpe:2.3:o:linux:linux_kernel:5.6:rc7::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52

NVD link : CVE-2026-46053

Mitre link : CVE-2026-46053

CVE.ORG link : CVE-2026-46053

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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