CVE-2026-100075
9.8 CRITICALPublished 2026-09-25 · Updated 2026-09-25
AI risk analysis
- 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.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to the fixed version 5.19.10 or later.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters When srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect descriptor, the unwind path destroys RDMA contexts but leaves stale n_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later sq_wr_avail accounting in srpt_queue_response() or srpt_write_pending() can then subtract the wrong number of send queue credits. Reset the counters and clear rw_ctxs after freeing the heap allocation before returning an error.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
All references
- https://git.kernel.org/stable/c/717ab4d0614e9446bf8e2de6229464499e4008d6
- https://git.kernel.org/stable/c/af00051dbc9f467d4840ec709680660a3f8990fa
- https://git.kernel.org/stable/c/af073bd245180393bcb15d33d3990a6bdc32593a
- https://git.kernel.org/stable/c/b38f98e176050850f41bb6415f3a71400056623e
- https://git.kernel.org/stable/c/bd02d644bd19a2795c018635d273d91e45d2bb95
- https://git.kernel.org/stable/c/be1478849e1abb1e12dc12e14cdbf800cc6fa99a
- https://git.kernel.org/stable/c/f1f2252da52cdda912da9993f39f58783b01b38f
- https://git.kernel.org/stable/c/f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- HIGHCVE-2026-13087
- HIGHCVE-2026-64562
- CRITICALCVE-2026-64564
- HIGHCVE-2026-64575
- HIGHCVE-2026-64577
- HIGHCVE-2026-64580
- HIGHCVE-2026-64581
- HIGHCVE-2026-64582
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