{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53866 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53866 is a high-severity vulnerability in Linux, published on 9 Dec 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-2023-53866 and fix it if it is affected.\n\nWhat it is: CVE-2023-53866 is a high-severity vulnerability in Linux, published on 9 Dec 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-2023-53866 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-2023-53866/ (Markdown: https://insights.sbomify.com/CVE-2023-53866/index.md)","id":"CVE-2023-53866","markdown":"https://insights.sbomify.com/CVE-2023-53866/index.md","name":"CVE-2023-53866","record":{"aliases":["BELL-CVE-2023-53866","DEBIAN-CVE-2023-53866","GHSA-2r2h-c3j9-j3mg","UBUNTU-CVE-2023-53866"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel audio","requires_auth":"low_privilege","summary":"A missing mutex lock in the Linux kernel ASoC compress driver causes a kernel panic when panic_on_warn is enabled and a compress stream is started.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"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: soc-compress: Reposition and add pcm_mutex\n\nIf panic_on_warn is set and compress stream(DPCM) is started,\nthen kernel panic occurred because card-\u003epcm_mutex isn't held appropriately.\nIn the following functions, warning were issued at this line\n\"snd_soc_dpcm_mutex_assert_held\".\n\nstatic int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,\n\t\tstruct snd_soc_pcm_runtime *be, int stream)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nvoid dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nvoid snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,\n\t\t\t    int stream, int action)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(rtd);\n\t...\n}\n\nint dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,\n\tint event)\n{\n\t...\n\tsnd_soc_dpcm_mutex_assert_held(fe);\n\t...\n}\n\nThese functions are called by soc_compr_set_params_fe, soc_compr_open_fe\nand soc_compr_free_fe\nwithout pcm_mutex locking. And this is call stack.\n\n[  414.527841][ T2179] pc : dpcm_process_paths+0x5a4/0x750\n[  414.527848][ T2179] lr : dpcm_process_paths+0x37c/0x750\n[  414.527945][ T2179] Call trace:\n[  414.527949][ T2179]  dpcm_process_paths+0x5a4/0x750\n[  414.527955][ T2179]  soc_compr_open_fe+0xb0/0x2cc\n[  414.527972][ T2179]  snd_compr_open+0x180/0x248\n[  414.527981][ T2179]  snd_open+0x15c/0x194\n[  414.528003][ T2179]  chrdev_open+0x1b0/0x220\n[  414.528023][ T2179]  do_dentry_open+0x30c/0x594\n[  414.528045][ T2179]  vfs_open+0x34/0x44\n[  414.528053][ T2179]  path_openat+0x914/0xb08\n[  414.528062][ T2179]  do_filp_open+0xc0/0x170\n[  414.528068][ T2179]  do_sys_openat2+0x94/0x18c\n[  414.528076][ T2179]  __arm64_sys_openat+0x78/0xa4\n[  414.528084][ T2179]  invoke_syscall+0x48/0x10c\n[  414.528094][ T2179]  el0_svc_common+0xbc/0x104\n[  414.528099][ T2179]  do_el0_svc+0x34/0xd8\n[  414.528103][ T2179]  el0_svc+0x34/0xc4\n[  414.528125][ T2179]  el0t_64_sync_handler+0x8c/0xfc\n[  414.528133][ T2179]  el0t_64_sync+0x1a0/0x1a4\n[  414.528142][ T2179] Kernel panic - not syncing: panic_on_warn set ...\n\nSo, I reposition and add pcm_mutex to resolve lockdep error.","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: soc-compress: Reposition and add pcm_mutex","id":"CVE-2023-53866","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"ceph: fix potential use-after-free bug when trimming caps","id":"CVE-2023-53867"},"packages":[],"prev":{"headline":"btrfs: fix warning when putting transaction with qgroups enabled after abort","id":"CVE-2023-53865"},"products":["Linux"],"published":"2025-12-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A missing mutex lock in the Linux kernel ASoC compress driver causes a kernel panic when panic_on_warn is enabled and a compress stream is started.","url":"https://insights.sbomify.com/CVE-2023-53866/"}