CVE-2026-100075

CriticalCVSS 9.8/10Last modified Oct 19, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Linux	Linux	>= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < af00051dbc9f467d4840ec709680660a3f8990fa; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < 717ab4d0614e9446bf8e2de6229464499e4008d6; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < f1f2252da52cdda912da9993f39f58783b01b38f; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < be1478849e1abb1e12dc12e14cdbf800cc6fa99a; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < af073bd245180393bcb15d33d3990a6bdc32593a; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < bd02d644bd19a2795c018635d273d91e45d2bb95; >= b99f8e4d7bcd3bfbb3cd965918523299370d0cb2, < b38f98e176050850f41bb6415f3a71400056623e
Linux	Linux	4.7

References

Timeline

Published: Sep 25, 2026
Last modified: Oct 19, 2026
NVD status: Undergoing Analysis

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