CVE-2026-53133

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.

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: 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

ProductFixed inFixReleased
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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