CVE-2026-46053
net: rds: fix MR cleanup on copy error
CVE-2026-46053 is fixed in 70 products on 1 platform, first by ALAS2023-2026-1753, released May 25, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| bpftool6.12 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-64kb · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-azure · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-debuginfo · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-default-base · opensuse-leap 16.0 | 6.12.0-160000.36.1.160000.2.17 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.66.1.150700.17.39.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.36.1.160000.2.17 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-devel · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.66.2 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-headers · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-kvmsmall · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-livepatch-6.1.175-219.357 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-livepatch-6.12.88-119.157 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel-livepatch-6.18.30-61.116 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_17 · sles 15.7 | 1-150700.1.3.1 | SUSE-SU-2026:2799-1 | Jul 8, 2026 |
| kernel-livepatch-SLE15-SP7_Update_18 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-obs-build · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-obs-qa · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-rt · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-source · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-syms · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel-tools · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| kernel-zfcpdump · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.66.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.36.1 | SUSE-SU-2026:22835-1 | Jul 21, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.176-1 | DEBIAN-CVE-2026-46053 | May 27, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.86-1 | DEBIAN-CVE-2026-46053 | May 27, 2026 |
| linux · Debian 14 | 7.0.4-1 | DEBIAN-CVE-2026-46053 | May 27, 2026 |
| perf · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| python3-perf · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.175-219.357.amzn2023 | ALAS2023-2026-1882 | Jun 22, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.88-119.157.amzn2023 | ALAS2023-2026-1753 | May 25, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.30-61.116.amzn2023 | ALAS2023-2026-1754 | May 25, 2026 |
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