{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98994 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-98994 is a vulnerability in Linux, published on 23 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-98994 and fix it if it is affected.\n\nWhat it is: CVE-2026-98994 is a vulnerability in Linux, published on 23 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-98994 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-98994/ (Markdown: https://insights.sbomify.com/CVE-2026-98994/index.md)","id":"CVE-2026-98994","markdown":"https://insights.sbomify.com/CVE-2026-98994/index.md","name":"CVE-2026-98994","record":{"aliases":["DEBIAN-CVE-2026-98994","GHSA-2fr8-4rp8-wvj2","UBUNTU-CVE-2026-98994"],"analysis":null,"analysis_generated_by":null,"assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstatmount: read the parent of an unmounted mount under mount_lock\n\nstatmount_mnt_basic() reads the ids of the parent through m-\u003emnt_parent\nwith namespace_sem held for reading. That's fine for a mount that is\nin a namespace. Everything above it is pinned by that namespace.\n\nSTATMOUNT_BY_FD also accepts a file descriptor on a mount that has\nbeen unmounted on purpose and that only the file descriptor keeps alive.\nIf that mount stayed attached to its parent when it was unmounted the\nparent is unmounted as well and nothing pins it for the child.\n\nThe final mntput() unmounts the children under mount_lock alone and\nfrees the parent afterwards. Concurrently, statmount_mnt_basic() reads\nm-\u003emnt_parent twice while that can happen and can easily dereference a\nmount that's already gone.\n\nRead the parent of an unmounted mount under mount_lock. The parent\ncan't be put while it is held and both ids come from the same mount. A\nmounted mount's parent is pinned by the namespace and a mount can't\nleave its namespace while namespace_sem is held, so the common case\ntakes no global lock.","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":"statmount: read the parent of an unmounted mount under mount_lock","id":"CVE-2026-98994","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"namespace: reset the old parent's -\u003eovermount in mnt_change_mountpoint()","id":"CVE-2026-98995"},"packages":[],"prev":{"headline":"namespace: don't inherit MNT_UMOUNT in clone_mnt()","id":"CVE-2026-98993"},"products":["Linux"],"published":"2026-10-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-23","vendors":["Linux"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-98994/"}