{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-48988 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-48988 is a high-severity use after free vulnerability in Linux kernel, published on 21 Oct 2024. 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-2022-48988 and fix it if it is affected.\n\nWhat it is: CVE-2022-48988 is a high-severity use after free vulnerability in Linux kernel, published on 21 Oct 2024. 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-2022-48988 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-2022-48988/ (Markdown: https://insights.sbomify.com/CVE-2022-48988/index.md)","id":"CVE-2022-48988","markdown":"https://insights.sbomify.com/CVE-2022-48988/index.md","name":"CVE-2022-48988","record":{"aliases":["DEBIAN-CVE-2022-48988","GHSA-9593-f5wq-r2vm","UBUNTU-CVE-2022-48988"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's memcg event control allows attackers to potentially execute code or escalate privileges via race conditions.","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":7.8,"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-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmemcg: fix possible use-after-free in memcg_write_event_control()\n\nmemcg_write_event_control() accesses the dentry-\u003ed_name of the specified\ncontrol fd to route the write call.  As a cgroup interface file can't be\nrenamed, it's safe to access d_name as long as the specified file is a\nregular cgroup file.  Also, as these cgroup interface files can't be\nremoved before the directory, it's safe to access the parent too.\n\nPrior to 347c4a874710 (\"memcg: remove cgroup_event-\u003ecft\"), there was a\ncall to __file_cft() which verified that the specified file is a regular\ncgroupfs file before further accesses.  The cftype pointer returned from\n__file_cft() was no longer necessary and the commit inadvertently dropped\nthe file type check with it allowing any file to slip through.  With the\ninvarients broken, the d_name and parent accesses can now race against\nrenames and removals of arbitrary files and cause use-after-free's.\n\nFix the bug by resurrecting the file type check in __file_cft().  Now that\ncgroupfs is implemented through kernfs, checking the file operations needs\nto go through a layer of indirection.  Instead, let's check the superblock\nand dentry type.","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":"memcg: fix possible use-after-free in memcg_write_event_control()","id":"CVE-2022-48988","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":7,"next":{"headline":"fscache: Fix oops due to race with cookie_lru and use_cookie","id":"CVE-2022-48989"},"packages":[],"prev":{"headline":"media: v4l2-dv-timings.c: fix too strict blanking sanity checks","id":"CVE-2022-48987"},"products":["Linux"],"published":"2024-10-21","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's memcg event control allows attackers to potentially execute code or escalate privileges via race conditions.","url":"https://insights.sbomify.com/CVE-2022-48988/"}