by Kastro
Paper/Archive/CVE-2026-100075

CVE-2026-100075

Linux Linux — RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 37.2.372 × 207.4No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < af00051dbc9f467d4840ec709680660a3f8990faaf00051dbc9f467d4840ec709680660a3f8990faCNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < 717ab4d0614e9446bf8e2de6229464499e4008d6717ab4d0614e9446bf8e2de6229464499e4008d6CNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < f1f2252da52cdda912da9993f39f58783b01b38ff1f2252da52cdda912da9993f39f58783b01b38fCNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189df65f45dfa1e6e2eaa9e11c8b8ce8857799cb189dCNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < be1478849e1abb1e12dc12e14cdbf800cc6fa99abe1478849e1abb1e12dc12e14cdbf800cc6fa99aCNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < af073bd245180393bcb15d33d3990a6bdc32593aaf073bd245180393bcb15d33d3990a6bdc32593aCNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < bd02d644bd19a2795c018635d273d91e45d2bb95bd02d644bd19a2795c018635d273d91e45d2bb95CNA
Linuxb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – < b38f98e176050850f41bb6415f3a71400056623eb38f98e176050850f41bb6415f3a71400056623eCNA
Linux4.7–CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/af00051dbc9f467d4840ec709680660a3f8990farefgit.kernel.org/stable/c/717ab4d0614e9446bf8e2de6229464499e4008d6refgit.kernel.org/stable/c/f1f2252da52cdda912da9993f39f58783b01b38frefgit.kernel.org/stable/c/f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189drefgit.kernel.org/stable/c/be1478849e1abb1e12dc12e14cdbf800cc6fa99arefgit.kernel.org/stable/c/af073bd245180393bcb15d33d3990a6bdc32593arefgit.kernel.org/stable/c/bd02d644bd19a2795c018635d273d91e45d2bb95refgit.kernel.org/stable/c/b38f98e176050850f41bb6415f3a71400056623e