{"id":"CVE-2026-90293","revision":null,"records":[{"revision":"75eeb34141154e0a9f93c7d9b4bce496","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90293","aliases":[],"title":"IB/isert: post the full-feature receive buffers after session registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/isert: post the full-feature receive buffers after session registration\n\nisert_put_login_tx() posts the full-feature receive buffers before\n__transport_register_session() runs, so an initiator that does not wait\nfor the final Login Response can still have a SCSI command executed\nagainst an se_session whose se_tpg is NULL - the same oops as the\nprevious patch, at target_submit+0xbe.\n\nPost them from isert_get_rx_pdu(), which the previous patch already uses\nto send that response, and post them before that send: the receive queue\nis filled at the moment the initiator is told it may use it. Allocating\nthere keeps the existing property that a memory allocation failure cannot\nhappen once the final Login Response is on the wire.\n\nThe receive queue is already empty between the final Login Request and\nisert_post_recvm(); this moves the second point later, from a median of\n92 us to 172 us over 1200 logins. Only an initiator that sends before it\nhas been told to can reach that window, and on IB and RoCE its send is\nretried there until the buffers appear - isert_rdma_accept() asks for\nrnr_retry_count = 7. iWARP has no RNR flow control, so there the same\nsend terminates the connection instead.\n\nMeasured over rxe, 400 login cycles per run, with an initiator that does\nnot wait: an instrumented build counted no entries to isert_recv_done()\nbefore the buffers are posted in 10 runs, where that initiator oopsed\n8 of 10 unpatched runs and 5 of 10 with only the previous patch.\n\nNot tested: iWARP, discovery sessions over iSER, and real HCAs.","state":0,"publishedAt":"2026-09-17T16:08:20.033+00:00","modifiedAt":"2026-10-19T09:01:11.44+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/infiniband/ulp/isert/ib_isert.c\"\n ],\n \"versions\": [\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"962edb9a6b0dae09d33a677485a398fc7d55968c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"068fe9841d2585b79d479fc7b58251d02d0b066f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"d4f8257c3283919ca7e149381d062b9af5f7df7d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"9c21a433022219ca899d1b3cd9049991f51a6a2c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"9b2c61344992c8c2b883e1eebe416cc488a19390\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"6c506fee5a5f2c8719c65bcfc5e5d0862b0a1946\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"ad4492dcaf90a1d1a728ec5eef1a68ce5355027a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b8d26b3be8b33682cf163274ed07479a70554633\",\n \"lessThan\": \"5247dde9daac7e107853b6fea043f7f47be033f7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/infiniband/ulp/isert/ib_isert.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.10\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.10\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.270\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.221\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.188\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.157\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.110\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.52\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2.6\",\n \"lessThanOrEqual\": \"7.2.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.3\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/962edb9a6b0dae09d33a677485a398fc7d55968c","https://git.kernel.org/stable/c/068fe9841d2585b79d479fc7b58251d02d0b066f","https://git.kernel.org/stable/c/d4f8257c3283919ca7e149381d062b9af5f7df7d","https://git.kernel.org/stable/c/9c21a433022219ca899d1b3cd9049991f51a6a2c","https://git.kernel.org/stable/c/9b2c61344992c8c2b883e1eebe416cc488a19390","https://git.kernel.org/stable/c/6c506fee5a5f2c8719c65bcfc5e5d0862b0a1946","https://git.kernel.org/stable/c/ad4492dcaf90a1d1a728ec5eef1a68ce5355027a","https://git.kernel.org/stable/c/5247dde9daac7e107853b6fea043f7f47be033f7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90293","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90293","identifiers":["CVE-2026-90293"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-09T03:04:09.5264463+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-09T03:04:09.5264463+00:00","lastSuccessAt":"2026-11-09T03:04:09.687719+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.687725+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-24e6fde7b744113daefb8f6135035fb8a5c69c9617c9c0d40574a0376532ffd3-147e40e6bacaf605c8b8b91790303c2161fe161e986dcab4007ffaf615b27ea0","complete":true,"records":421280,"lastAttemptAt":"2026-11-09T03:02:14.7184665+00:00","lastSuccessAt":"2026-11-09T03:02:14.7023872+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:02:14.7184665+00:00","snapshotPublishedAt":"2026-11-09T02:22:19+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-8df6aa9bf61c429e8dbcdf2dbb76a09d","complete":false,"records":13654,"lastAttemptAt":"2026-11-09T03:15:54.4377425+00:00","lastSuccessAt":"2026-11-09T03:15:54.5144014+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:15:54.5144014+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T03:04:09.5264463+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T03:04:09.5264463+00:00","lastSuccessAt":"2026-11-09T03:04:09.6884561+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.6884561+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-5a44a451442747cb81d83104fe1e7771","complete":true,"records":13666,"lastAttemptAt":"2026-11-09T03:04:10.1662574+00:00","lastSuccessAt":"2026-11-09T02:08:52.274+00:00","error":null,"lastVerifiedAt":"2026-11-09T02:08:52.274+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13706,"expectedIdentifiers":13706,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-980593e6977a6d1b4fb1eed5a1ffe88a468736f89f0a06f710924ad59132c023","complete":true,"records":9914,"lastAttemptAt":"2026-11-09T03:04:09.4835743+00:00","lastSuccessAt":"2026-11-08T11:07:07.068788+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.4835743+00:00","snapshotPublishedAt":"2026-11-08T11:02:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-09T03:02:14.8618119+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:02:14.8618119+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-3b1150af6d7ada2c07356cbab4ead5224c1485027890f71c71d0742cddf0b9e8","complete":true,"records":3055,"lastAttemptAt":"2026-11-09T03:04:09.4954044+00:00","lastSuccessAt":"2026-11-09T00:02:23.4330288+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.4954044+00:00","snapshotPublishedAt":"2026-11-08T23:17:54+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-d847477990cd62b1d95e922f40ca328269fbc268a0aa72bfe5bee28e656d8ce7","complete":true,"records":231296,"lastAttemptAt":"2026-11-09T03:04:09.3500258+00:00","lastSuccessAt":"2026-11-09T03:04:07.965371+00:00","error":null,"lastVerifiedAt":"2026-11-09T03:04:09.3500258+00:00","snapshotPublishedAt":"2026-11-09T02:33:09+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}