{"id":"CVE-2026-100075","title":"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 c…","summary":"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 c…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-459"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.7, < 5.10.270","linux_kernel >= 5.11, < 5.15.221","linux_kernel >= 5.16, < 6.1.188","linux_kernel >= 6.2, < 6.6.157","linux_kernel >= 6.7, < 6.12.110","linux_kernel >= 6.13, < 6.18.52","linux_kernel >= 6.19, < 7.2.6"],"patched":["linux_kernel 7.2.6"],"published":"2026-09-25","updated":"2026-10-02","sourceUpdated":"2026-10-02T15:06:42.497","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100075","references":[{"url":"https://git.kernel.org/stable/c/717ab4d0614e9446bf8e2de6229464499e4008d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af00051dbc9f467d4840ec709680660a3f8990fa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af073bd245180393bcb15d33d3990a6bdc32593a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b38f98e176050850f41bb6415f3a71400056623e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd02d644bd19a2795c018635d273d91e45d2bb95","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be1478849e1abb1e12dc12e14cdbf800cc6fa99a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f1f2252da52cdda912da9993f39f58783b01b38f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100075.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-100075"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541431"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-100075"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100075"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-100075.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.0043,"epssPercentile":0.37091,"scores":{"nvd":9.8,"vendor":5.5,"cna":9.8},"ingestedAt":"2026-09-25T14:09:46.376Z","slug":"CVE-2026-100075","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 4.7, < 5.10.270`\n- `linux_kernel >= 5.11, < 5.15.221`\n- `linux_kernel >= 5.16, < 6.1.188`\n- `linux_kernel >= 6.2, < 6.6.157`\n- `linux_kernel >= 6.7, < 6.12.110`\n- `linux_kernel >= 6.13, < 6.18.52`\n- `linux_kernel >= 6.19, < 7.2.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.2.6`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-100075.json)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":210883,"id":"CVE-2026-100075","ts":1790349106002,"field":"cvss","old":null,"new":"9.8"},{"seq":210882,"id":"CVE-2026-100075","ts":1790349106002,"field":"severity","old":"none","new":"critical"}]}