{"id":"CVE-2026-100075","published":"2026-09-25T14:17:14.163","lastModified":"2026-09-25T15:17:52.117","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters\n\nWhen srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect\ndescriptor, the unwind path destroys RDMA contexts but leaves stale\nn_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later\nsq_wr_avail accounting in srpt_queue_response() or srpt_write_pending()\ncan then subtract the wrong number of send queue credits.\n\nReset the counters and clear rw_ctxs after freeing the heap\nallocation before returning an error.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/717ab4d0614e9446bf8e2de6229464499e4008d6","tags":[]},{"url":"https://git.kernel.org/stable/c/af00051dbc9f467d4840ec709680660a3f8990fa","tags":[]},{"url":"https://git.kernel.org/stable/c/af073bd245180393bcb15d33d3990a6bdc32593a","tags":[]},{"url":"https://git.kernel.org/stable/c/b38f98e176050850f41bb6415f3a71400056623e","tags":[]},{"url":"https://git.kernel.org/stable/c/bd02d644bd19a2795c018635d273d91e45d2bb95","tags":[]},{"url":"https://git.kernel.org/stable/c/be1478849e1abb1e12dc12e14cdbf800cc6fa99a","tags":[]},{"url":"https://git.kernel.org/stable/c/f1f2252da52cdda912da9993f39f58783b01b38f","tags":[]},{"url":"https://git.kernel.org/stable/c/f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"This vulnerability in the Linux kernel's RDMA/srpt module can lead to incorrect send queue credit accounting, potentially causing denial of service or other issues if exploited.","exploitability":"Exploitation requires the attacker to trigger the srpt_alloc_rw_ctxs() failure during a multi-buffer indirect descriptor operation, which is relatively complex and depends on specific timing and conditions.","blast_radius":"If exploited, the impact is limited to the affected system, potentially leading to service disruption or denial of service conditions.","remediation":"Upgrade to the fixed version 5.19.10 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["dos","kernel","rdma"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-27T08:52:55.397Z"}}