{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49743 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49743 is a high-severity vulnerability in Linux kernel, published on 27 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-49743 and fix it if it is affected.\n\nWhat it is: CVE-2022-49743 is a high-severity vulnerability in Linux kernel, published on 27 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-49743 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-2022-49743/ (Markdown: https://insights.sbomify.com/CVE-2022-49743/index.md)","id":"CVE-2022-49743","markdown":"https://insights.sbomify.com/CVE-2022-49743/index.md","name":"CVE-2022-49743","record":{"aliases":["DEBIAN-CVE-2022-49743","GHSA-83h3-pmwm-wj9j","ROOT-OS-DEBIAN-11-CVE-2022-49743","UBUNTU-CVE-2022-49743"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel overlayfs","requires_auth":"none","summary":"A false positive FORTIFY_SOURCE warning in the Linux kernel overlayfs module could cause a runtime crash, requiring a patch to adjust memory handling.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\novl: Use \"buf\" flexible array for memcpy() destination\n\nThe \"buf\" flexible array needs to be the memcpy() destination to avoid\nfalse positive run-time warning from the recent FORTIFY_SOURCE\nhardening:\n\n  memcpy: detected field-spanning write (size 93) of single field \"\u0026fh-\u003efb\"\n  at fs/overlayfs/export.c:799 (size 21)","ecosystems":[],"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":"ovl: Use \"buf\" flexible array for memcpy() destination","id":"CVE-2022-49743","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"other","year":"2022"},"n_packages":0,"n_references":4,"next":{"headline":"mm/uffd: fix pte marker when fork() without fork event","id":"CVE-2022-49744"},"packages":[],"prev":{"headline":"f2fs: initialize locks earlier in f2fs_fill_super()","id":"CVE-2022-49742"},"products":["Linux"],"published":"2025-03-27","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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A false positive FORTIFY_SOURCE warning in the Linux kernel overlayfs module could cause a runtime crash, requiring a patch to adjust memory handling.","url":"https://insights.sbomify.com/CVE-2022-49743/"}