{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-50428 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50428 is a medium-severity vulnerability in Linux kernel, published on 1 Oct 2025. 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-2022-50428 and fix it if it is affected.\n\nWhat it is: CVE-2022-50428 is a medium-severity vulnerability in Linux kernel, published on 1 Oct 2025. 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-2022-50428 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-2022-50428/ (Markdown: https://insights.sbomify.com/CVE-2022-50428/index.md)","id":"CVE-2022-50428","markdown":"https://insights.sbomify.com/CVE-2022-50428/index.md","name":"CVE-2022-50428","record":{"aliases":["DEBIAN-CVE-2022-50428","GHSA-362x-q9rc-h58c","ROOT-OS-DEBIAN-11-CVE-2022-50428","UBUNTU-CVE-2022-50428"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel ext4","requires_auth":"low_privilege","summary":"Off-by-one errors in Linux kernel ext4 fast-commit block filling can lead to information disclosure or denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-193","name":"Off-by-one Error"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix off-by-one errors in fast-commit block filling\n\nDue to several different off-by-one errors, or perhaps due to a late\nchange in design that wasn't fully reflected in the code that was\nactually merged, there are several very strange constraints on how\nfast-commit blocks are filled with tlv entries:\n\n- tlvs must start at least 10 bytes before the end of the block, even\n  though the minimum tlv length is 8.  Otherwise, the replay code will\n  ignore them.  (BUG: ext4_fc_reserve_space() could violate this\n  requirement if called with a len of blocksize - 9 or blocksize - 8.\n  Fortunately, this doesn't seem to happen currently.)\n\n- tlvs must end at least 1 byte before the end of the block.  Otherwise\n  the replay code will consider them to be invalid.  This quirk\n  contributed to a bug (fixed by an earlier commit) where uninitialized\n  memory was being leaked to disk in the last byte of blocks.\n\nAlso, strangely these constraints don't apply to the replay code in\ne2fsprogs, which will accept any tlvs in the blocks (with no bounds\nchecks at all, but that is a separate issue...).\n\nGiven that this all seems to be a bug, let's fix it by just filling\nblocks with tlv entries in the natural way.\n\nNote that old kernels will be unable to replay fast-commit journals\ncreated by kernels that have this commit.","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":"ext4: fix off-by-one errors in fast-commit block filling","id":"CVE-2022-50428","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2022"},"n_packages":0,"n_references":4,"next":{"headline":"memory: of: Fix refcount leak bug in of_lpddr3_get_ddr_timings()","id":"CVE-2022-50429"},"packages":[],"prev":{"headline":"ALSA: ac97: fix possible memory leak in snd_ac97_dev_register()","id":"CVE-2022-50427"},"products":["Linux"],"published":"2025-10-01","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"Off-by-one errors in Linux kernel ext4 fast-commit block filling can lead to information disclosure or denial of service.","url":"https://insights.sbomify.com/CVE-2022-50428/"}