{"id":"CVE-2022-50775","state":"PUBLISHED","title":"RDMA/hns: Fix refcount leak in hns_roce_mmap","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix refcount leak in hns_roce_mmap\n\nrdma_user_mmap_entry_get_pgoff() takes the reference.\nAdd missing rdma_user_mmap_entry_put() to release the reference.\n\nAcked-by Haoyue Xu <xuhaoyue1@hisilicon.com>","publishedAt":"2025-12-24T13:06:05.074Z","updatedAt":"2026-05-11T19:25:18.333Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"fa87cf2e756efe809ee8683d4f282f4de962dab6","versionType":"git"},{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"8abd2ff2256a2a99c11c7ecdcb5512429933620f","versionType":"git"},{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/hns/hns_roce_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/hns/hns_roce_main.c"]}],"references":["https://git.kernel.org/stable/c/fa87cf2e756efe809ee8683d4f282f4de962dab6","https://git.kernel.org/stable/c/8abd2ff2256a2a99c11c7ecdcb5512429933620f","https://git.kernel.org/stable/c/cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50775.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50775","state":"PUBLISHED","datePublished":"2025-12-24T13:06:05.074Z","dateUpdated":"2026-05-11T19:25:18.333Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T13:02:21.547Z"},"containers":{"cna":{"title":"RDMA/hns: Fix refcount leak in hns_roce_mmap","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix refcount leak in hns_roce_mmap\n\nrdma_user_mmap_entry_get_pgoff() takes the reference.\nAdd missing rdma_user_mmap_entry_put() to release the reference.\n\nAcked-by Haoyue Xu <xuhaoyue1@hisilicon.com>"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"fa87cf2e756efe809ee8683d4f282f4de962dab6","versionType":"git"},{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"8abd2ff2256a2a99c11c7ecdcb5512429933620f","versionType":"git"},{"version":"0045e0d3f42ed7d05434bb5bc16acfc793ea4891","status":"affected","lessThan":"cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/hns/hns_roce_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/hw/hns/hns_roce_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fa87cf2e756efe809ee8683d4f282f4de962dab6"},{"url":"https://git.kernel.org/stable/c/8abd2ff2256a2a99c11c7ecdcb5512429933620f"},{"url":"https://git.kernel.org/stable/c/cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:25:18.333Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.1.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.2.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}