{"id":"CVE-2026-90177","revision":"bdda1045c54a42c0a836e4c07f91a5fe","records":[{"revision":"bdda1045c54a42c0a836e4c07f91a5fe","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90177","aliases":[],"title":"bpf: Check pointer type for all atomic RMW paths","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check pointer type for all atomic RMW paths\n\nAtomic RMW verification records an instruction pointer type only when the\ncurrent destination is PTR_TO_ARENA. A second path can therefore reach the\nsame instruction with an ordinary pointer without comparing it against the\nsaved arena type.\n\nThe post-verification fixup uses the saved type to rewrite the instruction\nto BPF_PROBE_ATOMIC for every path. Record the actual destination type for\nall atomic RMW paths so the existing mismatch check rejects incompatible\nuses of one instruction.","state":0,"publishedAt":"2026-09-17T16:07:03.097+00:00","modifiedAt":"2026-10-21T12:50:19.113+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                        \"kernel/bpf/verifier.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d503a04f8bc0c75dc9db9452d8cc79d748afb752\",\n                            \"lessThan\": \"b14dabe9656c1029abf3aa01e69c0d62f37f2f88\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d503a04f8bc0c75dc9db9452d8cc79d748afb752\",\n                            \"lessThan\": \"d4ba9d888ac0a8f12c78071fff73e1205a0b9293\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d503a04f8bc0c75dc9db9452d8cc79d748afb752\",\n                            \"lessThan\": \"eb287c6e81dedef92da01eb947f380d0aae513c3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d503a04f8bc0c75dc9db9452d8cc79d748afb752\",\n                            \"lessThan\": \"4bc49ae344d65cfcef738f281ac575cf73ca2fc5\",\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                        \"kernel/bpf/verifier.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\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/b14dabe9656c1029abf3aa01e69c0d62f37f2f88","https://git.kernel.org/stable/c/d4ba9d888ac0a8f12c78071fff73e1205a0b9293","https://git.kernel.org/stable/c/eb287c6e81dedef92da01eb947f380d0aae513c3","https://git.kernel.org/stable/c/4bc49ae344d65cfcef738f281ac575cf73ca2fc5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90177","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90177","identifiers":["CVE-2026-90177"]},"retained":false,"historicalAffected":[]}],"coverage":[]}