{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43279 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-43279 is a high-severity memory corruption vulnerability in Linux kernel, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-43279 and fix it if it is affected.\n\nWhat it is: CVE-2026-43279 is a high-severity memory corruption vulnerability in Linux kernel, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-43279 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-43279/ (Markdown: https://insights.sbomify.com/CVE-2026-43279/index.md)","id":"CVE-2026-43279","markdown":"https://insights.sbomify.com/CVE-2026-43279/index.md","name":"CVE-2026-43279","record":{"aliases":["BELL-CVE-2026-43279","DEBIAN-CVE-2026-43279","GHSA-2hw8-5267-5p9j","RHSA-2026:44522","RHSA-2026:46461","ROOT-OS-DEBIAN-11-CVE-2026-43279","ROOT-OS-UBUNTU-2204-CVE-2026-43279","ROOT-OS-UBUNTU-2404-CVE-2026-43279","UBUNTU-CVE-2026-43279"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A missing sanity check in the Linux kernel's ALSA USB audio driver allows out-of-bounds writes, leading to a system crash.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Add sanity check for OOB writes at silencing\n\nAt silencing the playback URB packets in the implicit fb mode before\nthe actual playback, we blindly assume that the received packets fit\nwith the buffer size.  But when the setup in the capture stream\ndiffers from the playback stream (e.g. due to the USB core limitation\nof max packet size), such an inconsistency may lead to OOB writes to\nthe buffer, resulting in a crash.\n\nFor addressing it, add a sanity check of the transfer buffer size at\nprepare_silent_urb(), and stop the data copy if the received data\noverflows.  Also, report back the transfer error properly from there,\ntoo.\n\nNote that this doesn't fix the root cause of the playback error\nitself, but this merely covers the kernel Oops.","ecosystems":["Red Hat:rhel_els:7","Red Hat:rhel_extras_rt_els:7"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ALSA: usb-audio: Add sanity check for OOB writes at silencing","id":"CVE-2026-43279","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2026"},"n_packages":37,"n_references":7,"next":{"headline":"drm/xe: Add bounds check on pat_index to prevent OOB kernel read in madvise","id":"CVE-2026-43280"},"packages":[{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"bpftool","purl":"pkg:rpm/redhat/bpftool","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"bpftool-debuginfo","purl":"pkg:rpm/redhat/bpftool-debuginfo","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-bootwrapper","purl":"pkg:rpm/redhat/kernel-bootwrapper","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64le","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64le","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-s390x","purl":"pkg:rpm/redhat/kernel-debuginfo-common-s390x","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-kdump","purl":"pkg:rpm/redhat/kernel-kdump","source":"RHSA-2026:44522"},{"ecosystem":"Red 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Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"python-perf","purl":"pkg:rpm/redhat/python-perf","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_els:7","fixed":["0:3.10.0-1160.157.1.el7"],"introduced":["0"],"last_affected":[],"package":"python-perf-debuginfo","purl":"pkg:rpm/redhat/python-perf-debuginfo","source":"RHSA-2026:44522"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt","purl":"pkg:rpm/redhat/kernel-rt","source":"RHSA-2026:46461"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug","purl":"pkg:rpm/redhat/kernel-rt-debug","source":"RHSA-2026:46461"},{"ecosystem":"Red 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Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-devel","purl":"pkg:rpm/redhat/kernel-rt-devel","source":"RHSA-2026:46461"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-doc","purl":"pkg:rpm/redhat/kernel-rt-doc","source":"RHSA-2026:46461"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace","purl":"pkg:rpm/redhat/kernel-rt-trace","source":"RHSA-2026:46461"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-trace-debuginfo","source":"RHSA-2026:46461"},{"ecosystem":"Red Hat:rhel_extras_rt_els:7","fixed":["0:3.10.0-1160.157.1.rt56.1309.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-devel","purl":"pkg:rpm/redhat/kernel-rt-trace-devel","source":"RHSA-2026:46461"}],"prev":{"headline":"dm: clear cloned request bio pointer when last clone bio completes","id":"CVE-2026-43278"},"products":["Linux"],"published":"2026-05-06","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A missing sanity check in the Linux kernel's ALSA USB audio driver allows out-of-bounds writes, leading to a system crash.","url":"https://insights.sbomify.com/CVE-2026-43279/"}