{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-47502 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-47502 is a high-severity memory corruption vulnerability in Linux kernel, published on 24 May 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-2021-47502 and fix it if it is affected.\n\nWhat it is: CVE-2021-47502 is a high-severity memory corruption vulnerability in Linux kernel, published on 24 May 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-2021-47502 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-2021-47502/ (Markdown: https://insights.sbomify.com/CVE-2021-47502/index.md)","id":"CVE-2021-47502","markdown":"https://insights.sbomify.com/CVE-2021-47502/index.md","name":"CVE-2021-47502","record":{"aliases":["DEBIAN-CVE-2021-47502","UBUNTU-CVE-2021-47502"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel audio driver","requires_auth":"low_privilege","summary":"A memory corruption vulnerability in the Linux kernel's WCD934x audio codec driver allows attackers to corrupt data structures, potentially leading to system crashes or code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: codecs: wcd934x: handle channel mappping list correctly\n\nCurrently each channel is added as list to dai channel list, however\nthere is danger of adding same channel to multiple dai channel list\nwhich endups corrupting the other list where its already added.\n\nThis patch ensures that the channel is actually free before adding to\nthe dai channel list and also ensures that the channel is on the list\nbefore deleting it.\n\nThis check was missing previously, and we did not hit this issue as\nwe were testing very simple usecases with sequence of amixer commands.","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":"ASoC: codecs: wcd934x: handle channel mappping list correctly","id":"CVE-2021-47502","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()","id":"CVE-2021-47503"},"packages":[],"prev":{"headline":"i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc","id":"CVE-2021-47501"},"products":["Linux"],"published":"2024-05-24","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A memory corruption vulnerability in the Linux kernel's WCD934x audio codec driver allows attackers to corrupt data structures, potentially leading to system crashes or code execution.","url":"https://insights.sbomify.com/CVE-2021-47502/"}