CVE-2026-46053
net: rds: fix MR cleanup on copy error
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.6
References 8
git.kernel.org
- stable/c/91a44b406bc1f9e1c5da0cb7d0d5991b43b79147
- stable/c/106dc689206610cfa2098f593fdd1e020c997835
- stable/c/ec55a86f7fba7d9111df94b9c11a4755ed492995
- stable/c/8fdbb6262a4a3ed44a0830a7793903b54bb27bdc
- stable/c/d95cea9298be1ba8876e3f156be96d3a492085ca
- stable/c/033370ffb3c9c0264d19f8ba9ef769523266589a
- stable/c/b3cb8cae530b2727d8245684148bb49425f6765c
- stable/c/8141a2dc70080eda1aedc0389ed2db2b292af5bd