cbcvebase.
CVE-2026-46053
published 2026-05-27

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…

high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
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.

Affected

10 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 91a44b406bc1f9e1c5da0cb7d0d5991b43b7914791a44b406bc1f9e1c5da0cb7d0d5991b43b79147
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 106dc689206610cfa2098f593fdd1e020c997835106dc689206610cfa2098f593fdd1e020c997835
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < ec55a86f7fba7d9111df94b9c11a4755ed492995ec55a86f7fba7d9111df94b9c11a4755ed492995
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc8fdbb6262a4a3ed44a0830a7793903b54bb27bdc
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < d95cea9298be1ba8876e3f156be96d3a492085cad95cea9298be1ba8876e3f156be96d3a492085ca
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 033370ffb3c9c0264d19f8ba9ef769523266589a033370ffb3c9c0264d19f8ba9ef769523266589a
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < b3cb8cae530b2727d8245684148bb49425f6765cb3cb8cae530b2727d8245684148bb49425f6765c
linuxlinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 8141a2dc70080eda1aedc0389ed2db2b292af5bd8141a2dc70080eda1aedc0389ed2db2b292af5bd
linuxlinux_kernel——