{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39742","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.120Z","datePublished":"2025-09-11T16:52:16.339Z","dateUpdated":"2026-05-12T12:06:41.965Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:35:23.845Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()\n\nThe function divides number of online CPUs by num_core_siblings, and\nlater checks the divider by zero. This implies a possibility to get\nand divide-by-zero runtime error. Fix it by moving the check prior to\ndivision. This also helps to save one indentation level."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/hfi1/affinity.c"],"versions":[{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"9bba1a9994c523b44db64f63b564b4719ea2b7ef","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"1a7cf828ed861de5be1aff99e10f114b363c19d3","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"9d3211cb61a0773a2440d0a0698c1e6e7429f907","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"4b4317b0d758ff92ba96f4e448a8992a6fe607bf","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"89fdac333a17ed990b41565630ef4791782e02f5","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"9b05e91afe948ed819bf87d7ba0fccf451ed79a6","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"31d0599a23efdbfe579bfbd1eb8f8c942f13744d","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"ac53f377393cc85156afdc90b636e84e544a6f96","status":"affected","versionType":"git"},{"version":"b094a36f90975373c3a241839869217a65f17d81","lessThan":"59f7d2138591ef8f0e4e4ab5f1ab674e8181ad3a","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/hfi1/affinity.c"],"versions":[{"version":"4.8","status":"affected"},{"version":"0","lessThan":"4.8","status":"unaffected","versionType":"semver"},{"version":"5.4.297","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.241","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.190","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.149","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.103","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.43","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.15.11","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16.2","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","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":"4.8","versionEndExcluding":"5.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.1.149"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.6.103"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.12.43"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.15.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.16.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9bba1a9994c523b44db64f63b564b4719ea2b7ef"},{"url":"https://git.kernel.org/stable/c/1a7cf828ed861de5be1aff99e10f114b363c19d3"},{"url":"https://git.kernel.org/stable/c/9d3211cb61a0773a2440d0a0698c1e6e7429f907"},{"url":"https://git.kernel.org/stable/c/4b4317b0d758ff92ba96f4e448a8992a6fe607bf"},{"url":"https://git.kernel.org/stable/c/89fdac333a17ed990b41565630ef4791782e02f5"},{"url":"https://git.kernel.org/stable/c/9b05e91afe948ed819bf87d7ba0fccf451ed79a6"},{"url":"https://git.kernel.org/stable/c/31d0599a23efdbfe579bfbd1eb8f8c942f13744d"},{"url":"https://git.kernel.org/stable/c/ac53f377393cc85156afdc90b636e84e544a6f96"},{"url":"https://git.kernel.org/stable/c/59f7d2138591ef8f0e4e4ab5f1ab674e8181ad3a"}],"title":"RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T17:42:57.252Z"}},{"x_adpType":"supplier","providerMetadata":{"orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP","dateUpdated":"2026-05-12T12:06:41.965Z"},"affected":[{"vendor":"Siemens","product":"SIMATIC CN 4100","versions":[{"status":"affected","version":"0","lessThan":"V5.0","versionType":"custom"}],"defaultStatus":"unknown"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}]}]}}