{"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":"2026-09-17T16:10:10.747Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:10:10.747Z"},"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-rc1","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-rc1"}]}]}],"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"}}}}