{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-71269 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-71269 is a high-severity use after free vulnerability in Linux kernel, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-71269 and fix it if it is affected.\n\nWhat it is: CVE-2025-71269 is a high-severity use after free vulnerability in Linux kernel, published on 18 Mar 2026. 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-2025-71269 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-2025-71269/ (Markdown: https://insights.sbomify.com/CVE-2025-71269/index.md)","id":"CVE-2025-71269","markdown":"https://insights.sbomify.com/CVE-2025-71269/index.md","name":"CVE-2025-71269","record":{"aliases":["AZL-80085","BELL-CVE-2025-71269","DEBIAN-CVE-2025-71269","GHSA-wqgp-m495-6968","ROOT-OS-DEBIAN-11-CVE-2025-71269","ROOT-OS-DEBIAN-12-CVE-2025-71269","ROOT-OS-DEBIAN-13-CVE-2025-71269","ROOT-OS-UBUNTU-2204-CVE-2025-71269","ROOT-OS-UBUNTU-2404-CVE-2025-71269","UBUNTU-CVE-2025-71269"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A use-after-free vulnerability in the Linux kernel's btrfs filesystem allows attackers to cause denial of service or potentially execute code via crafted filesystem operations.","user_interaction":"not_required","vuln_class":"use_after_free"},"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":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not free data reservation in fallback from inline due to -ENOSPC\n\nIf we fail to create an inline extent due to -ENOSPC, we will attempt to\ngo through the normal COW path, reserve an extent, create an ordered\nextent, etc. However we were always freeing the reserved qgroup data,\nwhich is wrong since we will use data. Fix this by freeing the reserved\nqgroup data in __cow_file_range_inline() only if we are not doing the\nfallback (ret is \u003c= 0).","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":"btrfs: do not free data reservation in fallback from inline due to -ENOSPC","id":"CVE-2025-71269","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"LoongArch: Enable exception fixup for specific ADE subcode","id":"CVE-2025-71270"},"packages":[],"prev":{"headline":"btrfs: fix reservation leak in some error paths when inserting inline extent","id":"CVE-2025-71268"},"products":["Linux"],"published":"2026-03-18","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's btrfs filesystem allows attackers to cause denial of service or potentially execute code via crafted filesystem operations.","url":"https://insights.sbomify.com/CVE-2025-71269/"}