CVE-2026-92495

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92495", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-16T12:21:13.871Z", "datePublished": "2026-09-17T16:10:10.747Z", "dateUpdated": "2026-10-19T09:04:01.510Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:04:01.510Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/bnxt_re/ib_verbs.c"], "versions": [{"version": "ea222485788208cd79bad42d25aae9232b33a934", "lessThan": "5361fb1e5bc246f9a2c0721543f72c8dac200769", "status": "affected", "versionType": "git"}, {"version": "ea222485788208cd79bad42d25aae9232b33a934", "lessThan": "13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4", "status": "affected", "versionType": "git"}, {"version": "ea222485788208cd79bad42d25aae9232b33a934", "lessThan": "0afbfe019c881483337d9f8304e678af05ebe7cc", "status": "affected", "versionType": "git"}, {"version": "ea222485788208cd79bad42d25aae9232b33a934", "lessThan": "518df61b9b0a5b288dfa72c87246045329c18b8c", "status": "affected", "versionType": "git"}, {"version": "ea222485788208cd79bad42d25aae9232b33a934", "lessThan": "9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/bnxt_re/ib_verbs.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-92495", "lastModified": "2026-10-19T09:19:39.760", "metrics": {}, "published": "2026-09-17T17:17:51.670", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0afbfe019c881483337d9f8304e678af05ebe7cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/518df61b9b0a5b288dfa72c87246045329c18b8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5361fb1e5bc246f9a2c0721543f72c8dac200769"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea222485788208cd79bad42d25aae9232b33a934,5361fb1e5bc246f9a2c0721543f72c8dac200769)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea222485788208cd79bad42d25aae9232b33a934,13e7861809ef9e7e720ff5f0af1d4293a6d0a9b4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea222485788208cd79bad42d25aae9232b33a934,0afbfe019c881483337d9f8304e678af05ebe7cc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea222485788208cd79bad42d25aae9232b33a934,518df61b9b0a5b288dfa72c87246045329c18b8c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ea222485788208cd79bad42d25aae9232b33a934,9b66c9af7172ffcf727214fa0ebe9a5e1ed6eb16)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T06:45:17.073897+00:00", "updated": "2026-09-19T14:45:14.070078+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-644", "CWE-787"]}