{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-90218", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.793Z", "datePublished": "2026-09-17T16:07:30.076Z", "dateUpdated": "2026-10-19T08:59:54.084Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:59:54.084Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cma: Fix WARNING in res_to_rt\n\nsyzbot reported a WARN_ON(!res->dev) in res_to_rt() triggered via\naddr_handler() during asynchronous address resolution:\n\n\"\nWARNING: drivers/infiniband/core/restrack.c:138 at res_to_rt+0x1c4/0x230\nCPU#1: kworker/u8:4/59\nModules linked in:\nCPU: 1 UID: 0 PID: 59 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Compute Engine, BIOS Google 07/24/2026\nWorkqueue: ib_addr process_one_req\nRIP: 0010:res_to_rt+0x1c4/0x230 drivers/infiniband/core/restrack.c:138\nRSP: 0018:ffffc9000201f850 EFLAGS: 00010293\nRAX: ffffffff88d00ce5 RBX: ffff88807f0fd4f8 RCX: ffff88801e6e0000\nRDX: 0000000000000000 RSI: ffffffff8fd996f0 RDI: 0000000000000003\nRBP: 0000000000000000 R08: ffff88801e6e0000 R09: 000000000000000a\nR10: 0000000000000009 R11: 0000000000000000 R12: dffffc0000000000\nR13: 1ffff1100fe1fa9f R14: 0000000000000000 R15: 0000000000000003\nFS: 0000000000000000(0000) GS:ffff888125012000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00001d559c3d2000 CR3: 0000000077c4c000 CR4: 00000000003526f0\nCall Trace:\n \n rdma_restrack_add+0x5a/0x8a0 drivers/infiniband/core/restrack.c:236\n addr_handler+0x41a/0x5a0 drivers/infiniband/core/cma.c:3534\n process_one_req+0x2eb/0x540 drivers/infiniband/core/addr.c:624\n process_one_work kernel/workqueue.c:3375 [inline]\n process_scheduled_works+0xc4e/0x1630 kernel/workqueue.c:3458\n worker_thread+0xa47/0xfb0 kernel/workqueue.c:3539\n kthread+0x388/0x470 kernel/kthread.c:436\n ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n \n\"\n\nIn addr_handler(), cma_acquire_dev_by_src_ip() is called to populate\nid_priv->cma_dev and bind the associated ib_device to id_priv->id.device.\nIf cma_acquire_dev_by_src_ip() returns an error (non-zero status), the ID\nremains unassociated with any RDMA device.\n\nPreviously, rdma_restrack_add(&id_priv->res) was invoked unconditionally\neven when cma_acquire_dev_by_src_ip() failed, passing a resource with a\nNULL dev pointer and triggering the WARN_ON assertion in res_to_rt().\n\nFix this by only adding the resource to restrack when acquiring the device\nsucceeds." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/core/cma.c" ], "versions": [ { "version": "c5ebaca402f5c5bd61ac8316feb2aa3a0be4d4a8", "lessThan": "1d7e55ea64dd15769318ba2e0fe0956db82ba3c3", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "39e83bb77fc92344cd62a373b311f096d812e548", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "9c80273d663959504957606b9a24fe901ee2a4a1", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "2a63cb9ea862ac7d947952b497eef6520853538c", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "f72957e0b31f2962f4c1089a9223f1206aa26983", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "544e40805dbb6cfe64916bd4c8b238fec585ac2a", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "64a2bd4cfc16c24f0a0e6321a2fd00ffde3e0a5b", "status": "affected", "versionType": "git" }, { "version": "cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa", "lessThan": "c6d1ec4fbe56492bb88987d577f04a5fb6955f26", "status": "affected", "versionType": "git" }, { "version": "073fdf539d4c022162db3d77a5afca1710f0de2d", "status": "affected", "versionType": "git" }, { "version": "fa37a461bd6d9ee86e891ba3e4074a450e44c881", "status": "affected", "versionType": "git" }, { "version": "5.10.37", "lessThan": "5.10.270", "status": "affected", "versionType": "semver" }, { "version": "5.11.21", "lessThan": "5.12", "status": "affected", "versionType": "semver" }, { "version": "5.12.4", "lessThan": "5.13", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/core/cma.c" ], "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.188", "lessThanOrEqual": "6.1.*", "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", "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": "5.10.37", "versionEndExcluding": "5.10.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.15.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.1.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.157" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.18.52" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.2.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11.21" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1d7e55ea64dd15769318ba2e0fe0956db82ba3c3" }, { "url": "https://git.kernel.org/stable/c/39e83bb77fc92344cd62a373b311f096d812e548" }, { "url": "https://git.kernel.org/stable/c/9c80273d663959504957606b9a24fe901ee2a4a1" }, { "url": "https://git.kernel.org/stable/c/2a63cb9ea862ac7d947952b497eef6520853538c" }, { "url": "https://git.kernel.org/stable/c/f72957e0b31f2962f4c1089a9223f1206aa26983" }, { "url": "https://git.kernel.org/stable/c/544e40805dbb6cfe64916bd4c8b238fec585ac2a" }, { "url": "https://git.kernel.org/stable/c/64a2bd4cfc16c24f0a0e6321a2fd00ffde3e0a5b" }, { "url": "https://git.kernel.org/stable/c/c6d1ec4fbe56492bb88987d577f04a5fb6955f26" } ], "title": "RDMA/cma: Fix WARNING in res_to_rt", "x_generator": { "engine": "bippy-1.2.0" } } } }