{"api_version":"1","generated_at":"2026-09-18T01:33:59+00:00","cve":"CVE-2026-92517","urls":{"html":"https://cve.report/CVE-2026-92517","api":"https://cve.report/api/cve/CVE-2026-92517.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-92517","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-92517"},"summary":{"title":"bpf, riscv: Fix extable handling for arena load_acquire","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, riscv: Fix extable handling for arena load_acquire\n\nemit_atomic_ld_st() returns 1 to have build_body() skip the zext after\na sub-word load_acquire. The caller does \"ret = ret ?:\nadd_exception_handler(...)\", which skips add_exception_handler() on any\nnon-zero ret, so the extable entry is missing and a faulting\nPROBE_ATOMIC load_acquire oopses.\n\nREG_DONT_CLEAR_MARKER leaves rd stale on fault, and the verifier still\nthinks the load overwrote it, so a program can leak it through a map.\n\nCheck ret >= 0 before calling add_exception_handler(), and pass rd for\nLOAD_ACQ so the fault zeroes rd like a PROBE_MEM load. Return ret\nunchanged for the zext skip.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:54","updated_at":"2026-09-17 17:17:54"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/08fe2eaa609180c1baeb76c2629a9c82263b0427","name":"https://git.kernel.org/stable/c/08fe2eaa609180c1baeb76c2629a9c82263b0427","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/26d9496c826586338d1b8c27edfec4a19a89f462","name":"https://git.kernel.org/stable/c/26d9496c826586338d1b8c27edfec4a19a89f462","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5eb8921371c6fd117d4a328b6053dfda38707df8","name":"https://git.kernel.org/stable/c/5eb8921371c6fd117d4a328b6053dfda38707df8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92517","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92517","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb7cefabae8117c203155ef169a386bec43bbba9 26d9496c826586338d1b8c27edfec4a19a89f462 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb7cefabae8117c203155ef169a386bec43bbba9 08fe2eaa609180c1baeb76c2629a9c82263b0427 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb7cefabae8117c203155ef169a386bec43bbba9 5eb8921371c6fd117d4a328b6053dfda38707df8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/riscv/net/bpf_jit_comp64.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"26d9496c826586338d1b8c27edfec4a19a89f462","status":"affected","version":"fb7cefabae8117c203155ef169a386bec43bbba9","versionType":"git"},{"lessThan":"08fe2eaa609180c1baeb76c2629a9c82263b0427","status":"affected","version":"fb7cefabae8117c203155ef169a386bec43bbba9","versionType":"git"},{"lessThan":"5eb8921371c6fd117d4a328b6053dfda38707df8","status":"affected","version":"fb7cefabae8117c203155ef169a386bec43bbba9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/riscv/net/bpf_jit_comp64.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, riscv: Fix extable handling for arena load_acquire\n\nemit_atomic_ld_st() returns 1 to have build_body() skip the zext after\na sub-word load_acquire. The caller does \"ret = ret ?:\nadd_exception_handler(...)\", which skips add_exception_handler() on any\nnon-zero ret, so the extable entry is missing and a faulting\nPROBE_ATOMIC load_acquire oopses.\n\nREG_DONT_CLEAR_MARKER leaves rd stale on fault, and the verifier still\nthinks the load overwrote it, so a program can leak it through a map.\n\nCheck ret >= 0 before calling add_exception_handler(), and pass rd for\nLOAD_ACQ so the fault zeroes rd like a PROBE_MEM load. Return ret\nunchanged for the zext skip."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:10:25.482Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/26d9496c826586338d1b8c27edfec4a19a89f462"},{"url":"https://git.kernel.org/stable/c/08fe2eaa609180c1baeb76c2629a9c82263b0427"},{"url":"https://git.kernel.org/stable/c/5eb8921371c6fd117d4a328b6053dfda38707df8"}],"title":"bpf, riscv: Fix extable handling for arena load_acquire","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-92517","datePublished":"2026-09-17T16:10:25.482Z","dateReserved":"2026-09-16T12:21:13.873Z","dateUpdated":"2026-09-17T16:10:25.482Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:54","lastModifiedDate":"2026-09-17 17:17:54","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"92517","Ordinal":"1","Title":"bpf, riscv: Fix extable handling for arena load_acquire","CVE":"CVE-2026-92517","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"92517","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, riscv: Fix extable handling for arena load_acquire\n\nemit_atomic_ld_st() returns 1 to have build_body() skip the zext after\na sub-word load_acquire. The caller does \"ret = ret ?:\nadd_exception_handler(...)\", which skips add_exception_handler() on any\nnon-zero ret, so the extable entry is missing and a faulting\nPROBE_ATOMIC load_acquire oopses.\n\nREG_DONT_CLEAR_MARKER leaves rd stale on fault, and the verifier still\nthinks the load overwrote it, so a program can leak it through a map.\n\nCheck ret >= 0 before calling add_exception_handler(), and pass rd for\nLOAD_ACQ so the fault zeroes rd like a PROBE_MEM load. Return ret\nunchanged for the zext skip.","Type":"Description","Title":"bpf, riscv: Fix extable handling for arena load_acquire"}]}}}