{"id":"CVE-2026-90218","revision":"a7ae3944bf5549c082cd7b45a9ae6242","records":[{"revision":"a7ae3944bf5549c082cd7b45a9ae6242","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90218","aliases":[],"title":"RDMA/cma: Fix WARNING in res_to_rt","description":"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.","state":0,"publishedAt":"2026-09-17T16:07:30.076+00:00","modifiedAt":"2026-10-19T08:59:54.084+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/core/cma.c\"\n ],\n \"versions\": [\n {\n \"version\": \"c5ebaca402f5c5bd61ac8316feb2aa3a0be4d4a8\",\n \"lessThan\": \"1d7e55ea64dd15769318ba2e0fe0956db82ba3c3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"39e83bb77fc92344cd62a373b311f096d812e548\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"9c80273d663959504957606b9a24fe901ee2a4a1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"2a63cb9ea862ac7d947952b497eef6520853538c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"f72957e0b31f2962f4c1089a9223f1206aa26983\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"544e40805dbb6cfe64916bd4c8b238fec585ac2a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"64a2bd4cfc16c24f0a0e6321a2fd00ffde3e0a5b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cb5cd0ea4eb3ce338a593a5331ddb4986ae20faa\",\n \"lessThan\": \"c6d1ec4fbe56492bb88987d577f04a5fb6955f26\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"073fdf539d4c022162db3d77a5afca1710f0de2d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fa37a461bd6d9ee86e891ba3e4074a450e44c881\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.10.37\",\n \"lessThan\": \"5.10.270\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.11.21\",\n \"lessThan\": \"5.12\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.12.4\",\n \"lessThan\": \"5.13\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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/core/cma.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.13\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.13\",\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":[],"references":["https://git.kernel.org/stable/c/1d7e55ea64dd15769318ba2e0fe0956db82ba3c3","https://git.kernel.org/stable/c/39e83bb77fc92344cd62a373b311f096d812e548","https://git.kernel.org/stable/c/9c80273d663959504957606b9a24fe901ee2a4a1","https://git.kernel.org/stable/c/2a63cb9ea862ac7d947952b497eef6520853538c","https://git.kernel.org/stable/c/f72957e0b31f2962f4c1089a9223f1206aa26983","https://git.kernel.org/stable/c/544e40805dbb6cfe64916bd4c8b238fec585ac2a","https://git.kernel.org/stable/c/64a2bd4cfc16c24f0a0e6321a2fd00ffde3e0a5b","https://git.kernel.org/stable/c/c6d1ec4fbe56492bb88987d577f04a5fb6955f26"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90218","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90218","identifiers":["CVE-2026-90218"]},"retained":false,"historicalAffected":[]}],"coverage":[]}