{"api_version":"1","generated_at":"2026-10-26T07:00:26+00:00","cve":"CVE-2026-92495","urls":{"html":"https://cve.report/CVE-2026-92495","api":"https://cve.report/api/cve/CVE-2026-92495.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-92495","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-92495"},"summary":{"title":"RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap\n\nbnxt_re_mmap() rejects VM_WRITE for the DBR_PAGE and TOGGLE_PAGE mmap\nflags, but a read-only mapping can still retain VM_MAYWRITE. nd later\nbe upgraded with mprotect(PROT_WRITE). This can bypass the write check\nthat only runs at mmap time.\n\nClear VM_MAYWRITE before vm_insert_page() in the shared DBR/toggle-page\nbranch, matching the existing policy that userspace writes are not\nexpected for these pages.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:51","updated_at":"2026-10-19 09:19:39"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5361fb1e5bc246f9a2c0721543f72c8dac200769","name":"https://git.kernel.org/stable/c/5361fb1e5bc246f9a2c0721543f72c8dac200769","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16","name":"https://git.kernel.org/stable/c/9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0afbfe019c881483337d9f8304e678af05ebe7cc","name":"https://git.kernel.org/stable/c/0afbfe019c881483337d9f8304e678af05ebe7cc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/518df61b9b0a5b288dfa72c87246045329c18b8c","name":"https://git.kernel.org/stable/c/518df61b9b0a5b288dfa72c87246045329c18b8c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4","name":"https://git.kernel.org/stable/c/13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92495","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92495","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea222485788208cd79bad42d25aae9232b33a934 5361fb1e5bc246f9a2c0721543f72c8dac200769 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea222485788208cd79bad42d25aae9232b33a934 13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea222485788208cd79bad42d25aae9232b33a934 0afbfe019c881483337d9f8304e678af05ebe7cc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea222485788208cd79bad42d25aae9232b33a934 518df61b9b0a5b288dfa72c87246045329c18b8c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea222485788208cd79bad42d25aae9232b33a934 9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* 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 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"92495","cve":"CVE-2026-92495","epss":"0.002100000","percentile":"0.115120000","score_date":"2026-09-18","updated_at":"2026-09-19 00:06:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/infiniband/hw/bnxt_re/ib_verbs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5361fb1e5bc246f9a2c0721543f72c8dac200769","status":"affected","version":"ea222485788208cd79bad42d25aae9232b33a934","versionType":"git"},{"lessThan":"13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4","status":"affected","version":"ea222485788208cd79bad42d25aae9232b33a934","versionType":"git"},{"lessThan":"0afbfe019c881483337d9f8304e678af05ebe7cc","status":"affected","version":"ea222485788208cd79bad42d25aae9232b33a934","versionType":"git"},{"lessThan":"518df61b9b0a5b288dfa72c87246045329c18b8c","status":"affected","version":"ea222485788208cd79bad42d25aae9232b33a934","versionType":"git"},{"lessThan":"9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16","status":"affected","version":"ea222485788208cd79bad42d25aae9232b33a934","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/infiniband/hw/bnxt_re/ib_verbs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","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","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap\n\nbnxt_re_mmap() rejects VM_WRITE for the DBR_PAGE and TOGGLE_PAGE mmap\nflags, but a read-only mapping can still retain VM_MAYWRITE. nd later\nbe upgraded with mprotect(PROT_WRITE). This can bypass the write check\nthat only runs at mmap time.\n\nClear VM_MAYWRITE before vm_insert_page() in the shared DBR/toggle-page\nbranch, matching the existing policy that userspace writes are not\nexpected for these pages."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:04:01.510Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5361fb1e5bc246f9a2c0721543f72c8dac200769"},{"url":"https://git.kernel.org/stable/c/13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4"},{"url":"https://git.kernel.org/stable/c/0afbfe019c881483337d9f8304e678af05ebe7cc"},{"url":"https://git.kernel.org/stable/c/518df61b9b0a5b288dfa72c87246045329c18b8c"},{"url":"https://git.kernel.org/stable/c/9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16"}],"title":"RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-92495","datePublished":"2026-09-17T16:10:10.747Z","dateReserved":"2026-09-16T12:21:13.871Z","dateUpdated":"2026-10-19T09:04:01.510Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:51","lastModifiedDate":"2026-10-19 09:19:39","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"92495","Ordinal":"1","Title":"RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap","CVE":"CVE-2026-92495","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"92495","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap\n\nbnxt_re_mmap() rejects VM_WRITE for the DBR_PAGE and TOGGLE_PAGE mmap\nflags, but a read-only mapping can still retain VM_MAYWRITE. nd later\nbe upgraded with mprotect(PROT_WRITE). This can bypass the write check\nthat only runs at mmap time.\n\nClear VM_MAYWRITE before vm_insert_page() in the shared DBR/toggle-page\nbranch, matching the existing policy that userspace writes are not\nexpected for these pages.","Type":"Description","Title":"RDMA/bnxt_re: Clear VM_MAYWRITE on DBR/toggle page mmap"}]}}}