RDMA/umem: Fix truncation for block sizes >= 4G
CVE-2026-53133 is fixed in 117 products on 1 platform, first by DEBIAN-CVE-2026-53133, released June 25, 2026. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix truncation for block sizes >= 4G When the iommu is used the linearization of the mapping can give a single block that is very large split across multiple SG entries. When __rdma_block_iter_next() reassembles the split SG entries it is overflowing the 32 bit stack values and computed the wrong DMA addresses for blocks after the truncation. Use the right types to hold DMA addresses.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| bpftool6.12 · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| dtb-aarch64 · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 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 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-default · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-default · sles 15.6 | 6.4.0-150600.23.125.1 | SUSE-SU-2026:3156-1 | 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 15.6 | 6.4.0-150600.23.125.1.150600.12.58.3 | SUSE-SU-2026:3156-1 | 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 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-docs · opensuse-leap 16.0 | 6.12.0-160000.36.1 | OPENSUSE-SU-2026:21388-1 | Jul 21, 2026 |
| kernel-docs · sles 15.6 | 6.4.0-150600.23.125.1 | SUSE-SU-2026:3156-1 | 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 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 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-6.1.176-220.358 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-livepatch-6.12.94-123.174 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel-livepatch-6.18.36-69.134 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel-livepatch-SLE15-SP6_Update_14 · sles 15.6 | 16-150600.2.1 | SUSE-SU-2026:3726-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_15 · sles 15.6 | 16-150600.2.1 | SUSE-SU-2026:3754-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_16 · sles 15.6 | 13-150600.2.1 | SUSE-SU-2026:3704-1 | Aug 23, 2026 |
| kernel-livepatch-SLE15-SP6_Update_18 · sles 15.6 | 11-150600.2.1 | SUSE-SU-2026:3748-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_20 · sles 15.6 | 10-150600.2.1 | SUSE-SU-2026:3719-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_24 · sles 15.6 | 6-150600.2.1 | SUSE-SU-2026:3761-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_25 · sles 15.6 | 5-150600.2.1 | SUSE-SU-2026:3760-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP6_Update_26 · sles 15.6 | 5-150600.2.1 | SUSE-SU-2026:3775-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP6_Update_27 · sles 15.6 | 4-150600.2.1 | SUSE-SU-2026:3776-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP6_Update_28 · sles 15.6 | 4-150600.2.1 | SUSE-SU-2026:3777-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP6_Update_29 · sles 15.6 | 1-150600.13.7.1 | SUSE-SU-2026:3156-1 | Jul 21, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_10 · sles 15.7 | 8-150700.2.1 | SUSE-SU-2026:3696-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_12 · sles 15.7 | 7-150700.2.1 | SUSE-SU-2026:3746-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_13 · sles 15.7 | 6-150700.2.1 | SUSE-SU-2026:3698-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_14 · sles 15.7 | 5-150700.2.1 | SUSE-SU-2026:3694-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_15 · sles 15.7 | 4-150700.2.1 | SUSE-SU-2026:3699-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_16 · sles 15.7 | 4-150700.2.1 | SUSE-SU-2026:3700-1 | Aug 22, 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-RT_Update_3 · sles 15.7 | 16-150700.2.1 | SUSE-SU-2026:3689-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_7 · sles 15.7 | 11-150700.2.1 | SUSE-SU-2026:3697-1 | Aug 22, 2026 |
| kernel-livepatch-SLE15-SP7-RT_Update_8 · sles 15.7 | 11-150700.2.1 | SUSE-SU-2026:3748-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_10 · sles 15.7 | 8-150700.2.1 | SUSE-SU-2026:3771-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_11 · sles 15.7 | 8-150700.2.1 | SUSE-SU-2026:3770-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_14 · sles 15.7 | 5-150700.2.1 | SUSE-SU-2026:3774-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP7_Update_15 · sles 15.7 | 4-150700.2.1 | SUSE-SU-2026:3779-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP7_Update_16 · sles 15.7 | 4-150700.2.1 | SUSE-SU-2026:3778-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP7_Update_17 · sles 15.7 | 3-150700.2.1 | SUSE-SU-2026:3780-1 | Aug 25, 2026 |
| kernel-livepatch-SLE15-SP7_Update_18 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:2800-1 | Jul 8, 2026 |
| kernel-livepatch-SLE15-SP7_Update_3 · sles 15.7 | 16-150700.2.1 | SUSE-SU-2026:3726-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_4 · sles 15.7 | 16-150700.2.1 | SUSE-SU-2026:3754-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_6 · sles 15.7 | 11-150700.2.1 | SUSE-SU-2026:3704-1 | Aug 23, 2026 |
| kernel-livepatch-SLE15-SP7_Update_7 · sles 15.7 | 11-150700.2.1 | SUSE-SU-2026:3768-1 | Aug 24, 2026 |
| kernel-livepatch-SLE15-SP7_Update_8 · sles 15.7 | 11-150700.2.1 | SUSE-SU-2026:3761-1 | Aug 24, 2026 |
| kernel-livepatch-SLE16_Update_0 · sles 16.0 | 17-160000.4.3 | SUSE-SU-2026:23341-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_1 · sles 16.0 | 15-160000.1.1 | SUSE-SU-2026:23343-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_10 · sles 16.0 | 6-160000.1.1 | SUSE-SU-2026:23332-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_11 · sles 16.0 | 6-160000.1.1 | SUSE-SU-2026:23331-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_12 · sles 16.0 | 4-160000.1.1 | SUSE-SU-2026:23330-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_13 · sles 16.0 | 4-160000.1.2 | SUSE-SU-2026:23329-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_14 · sles 16.0 | 4-160000.1.1 | SUSE-SU-2026:23342-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_2 · sles 16.0 | 13-160000.1.1 | SUSE-SU-2026:23340-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_3 · sles 16.0 | 12-160000.1.1 | SUSE-SU-2026:23339-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_4 · sles 16.0 | 11-160000.1.1 | SUSE-SU-2026:23338-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_5 · sles 16.0 | 10-160000.1.1 | SUSE-SU-2026:23337-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_6 · sles 16.0 | 9-160000.1.1 | SUSE-SU-2026:23336-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_7 · sles 16.0 | 8-160000.1.1 | SUSE-SU-2026:23335-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_8 · sles 16.0 | 7-160000.1.1 | SUSE-SU-2026:23334-1 | Aug 26, 2026 |
| kernel-livepatch-SLE16_Update_9 · sles 16.0 | 6-160000.1.1 | SUSE-SU-2026:23333-1 | Aug 26, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 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 15.6 | 6.4.0-150600.23.125.1 | SUSE-SU-2026:3156-1 | 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 15.6 | 6.4.0-150600.23.125.1 | SUSE-SU-2026:3156-1 | 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 15.6 | 6.4.0-150600.23.125.1 | SUSE-SU-2026:3156-1 | 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 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 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 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.176-1 | DEBIAN-CVE-2026-53133 | Jun 25, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.94-1 | DEBIAN-CVE-2026-53133 | Jun 25, 2026 |
| linux · Debian 14 | 7.0.13-1 | DEBIAN-CVE-2026-53133 | Jun 25, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| perf · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| python3-perf · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.176-220.358.amzn2023 | ALAS2023-2026-1924 | Jul 6, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.94-123.174.amzn2023 | ALAS2023-2026-1968 | Jul 20, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.36-69.134.amzn2023 | ALAS2023-2026-1925 | Jul 6, 2026 |
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