{"id":"CVE-2026-98162","state":"PUBLISHED","title":"smb/server: fix tree connection leak in smb2_tree_connect()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(&sess->tree_conns, tree_conn->id, tree_conn)\n      ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS)\n      ksmbd_share_tree_conn_inc(sc)\n    ksmbd_iov_pin_rsp // fail\n    status.ret = KSMBD_TREE_CONN_STATUS_NOMEM\n    // do not disconnect tree_conn\n\nDisconnect the new tree connection if ksmbd_iov_pin_rsp() fails.","publishedAt":"2026-09-25T13:06:51.778Z","updatedAt":"2026-10-21T12:54:46.112Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"fa0c45986fc60b3edfb35879f2fb0eacc0e49e98","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"fea9c705bbc618ba6426424c9f8330555820c9ec","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"39f2032096715daae5f6fd0f587ca7a474b019df","versionType":"git"},{"version":"f2283680a80571ca82d710bc6ecd8f8beac67d63","status":"affected","versionType":"git"},{"version":"9f297df20d93411c0b4ddad7f88ba04a7cd36e77","status":"affected","versionType":"git"},{"version":"5.15.145","status":"affected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.71","status":"affected","lessThan":"6.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/smb2pdu.c"]}],"references":["https://git.kernel.org/stable/c/fa0c45986fc60b3edfb35879f2fb0eacc0e49e98","https://git.kernel.org/stable/c/fea9c705bbc618ba6426424c9f8330555820c9ec","https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc","https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98162.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98162","state":"PUBLISHED","datePublished":"2026-09-25T13:06:51.778Z","dateUpdated":"2026-10-21T12:54:46.112Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.321Z"},"containers":{"cna":{"title":"smb/server: fix tree connection leak in smb2_tree_connect()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(&sess->tree_conns, tree_conn->id, tree_conn)\n      ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS)\n      ksmbd_share_tree_conn_inc(sc)\n    ksmbd_iov_pin_rsp // fail\n    status.ret = KSMBD_TREE_CONN_STATUS_NOMEM\n    // do not disconnect tree_conn\n\nDisconnect the new tree connection if ksmbd_iov_pin_rsp() fails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"fa0c45986fc60b3edfb35879f2fb0eacc0e49e98","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"fea9c705bbc618ba6426424c9f8330555820c9ec","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc","versionType":"git"},{"version":"e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d","status":"affected","lessThan":"39f2032096715daae5f6fd0f587ca7a474b019df","versionType":"git"},{"version":"f2283680a80571ca82d710bc6ecd8f8beac67d63","status":"affected","versionType":"git"},{"version":"9f297df20d93411c0b4ddad7f88ba04a7cd36e77","status":"affected","versionType":"git"},{"version":"5.15.145","status":"affected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.71","status":"affected","lessThan":"6.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/smb2pdu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/smb2pdu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fa0c45986fc60b3edfb35879f2fb0eacc0e49e98"},{"url":"https://git.kernel.org/stable/c/fea9c705bbc618ba6426424c9f8330555820c9ec"},{"url":"https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc"},{"url":"https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:54:46.112Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.57"},{"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"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.71"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}