{"id":"CVE-2026-90143","revision":"3a6927e9bc9e4c999f3817166d1b54f6","records":[{"revision":"3a6927e9bc9e4c999f3817166d1b54f6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90143","aliases":[],"title":"net: kcm: Hold RCU read lock while running BPF parser","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: kcm: Hold RCU read lock while running BPF parser\n\nkcm_parse_func_strparser() calls bpf_prog_run_pin_on_cpu() which\nprevents CPU migration, but does not establish an RCU read-side\ncritical section. Consequently, BPF map operations can trigger\nWARN_ON_ONCE(!bpf_rcu_lock_held()) when called from the KCM strparser\nprogram.\n\nHold the RCU read lock while running the program.","state":0,"publishedAt":"2026-09-17T16:06:39.775+00:00","modifiedAt":"2026-10-19T08:58:41.623+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/kcm/kcmsock.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"37108861cf7bd909d4a372069bcd61c8f489e232\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"3c70d27e792a28bca650ddd8a9aa0fe3591ffec5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"1d26a6e007d46babc7fa76e5a157dccf86cd55c0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"b0e94ea63dbdcbfec9beb819cd5f8fa584809ef2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"21526f8a191a3c50622b8c10bd927870d780eae4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"292846223eaddba890e40699d2ab82ee5671798c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"f392affef3c9ce64dfdde794df0579e0a7793440\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9b73896a81dc68a638a011877b7344b252f92276\",\n                            \"lessThan\": \"b0346dd64e4905291cc9c479f2e6cf1884ced4e6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/kcm/kcmsock.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/37108861cf7bd909d4a372069bcd61c8f489e232","https://git.kernel.org/stable/c/3c70d27e792a28bca650ddd8a9aa0fe3591ffec5","https://git.kernel.org/stable/c/1d26a6e007d46babc7fa76e5a157dccf86cd55c0","https://git.kernel.org/stable/c/b0e94ea63dbdcbfec9beb819cd5f8fa584809ef2","https://git.kernel.org/stable/c/21526f8a191a3c50622b8c10bd927870d780eae4","https://git.kernel.org/stable/c/292846223eaddba890e40699d2ab82ee5671798c","https://git.kernel.org/stable/c/f392affef3c9ce64dfdde794df0579e0a7793440","https://git.kernel.org/stable/c/b0346dd64e4905291cc9c479f2e6cf1884ced4e6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90143","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90143","identifiers":["CVE-2026-90143"]},"retained":false,"historicalAffected":[]}],"coverage":[]}