Critical severity9.8NVD Advisory· Published May 19, 2026· Updated Jun 26, 2026
CVE-2026-43493
CVE-2026-43493
Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: pcrypt - Fix handling of MAY_BACKLOG requests
MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
93- osv-coords91 versionspkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/perfpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/kernel-modules-extra-matchedpkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-64k-corepkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-corepkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-corepkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/rtlapkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-debugpkg:linux/kernelpkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/libperfpkg:rpm/almalinux/rvpkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/bpftoolpkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addons
< 6.12.0-160000.37.1+ 90 more
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 7.0.10-1.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1.160000.2.19
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: >= 2.6.34, < 5.10.258
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 4.18.0-553.160.1.el8_10
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
- (no CPE)range: < 6.12.0-211.49.1.el10_2
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084envdPatch
- git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380anvdPatch
- git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236nvdPatch
- git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67nvdPatch
- git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110nvdPatch
- git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2nvdPatch
- git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9envdPatch
- git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276nvdPatch
News mentions
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