Use-after-free in Linux kernel - CVE-2026-92510
Published: September 18, 2026
Vulnerability identifier: #VU151011
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-92510
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a use-after-free.
The vulnerability exists due to a use-after-free in the SRQ resource-tracking lifecycle in ib_destroy_srq_user() when accessing a shared receive queue through the netlink path during destruction. A local user can access a shared receive queue that remains accessible through restrack while its vendor-specific resources are being released to trigger a use-after-free.
Affected software
Linux kernel
How to mitigate CVE-2026-92510
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/88244ecc71cc0b3ed200f5ef7ddea6686adfd730
- https://git.kernel.org/stable/c/95c992c869df54a6a7061f5f3fb6400244f2af8f
- https://git.kernel.org/stable/c/9c704383529044c02122f85a2a9a42cbf14a07a6
- https://git.kernel.org/stable/c/a5bfd9fe05d5cebbd3e447bf7f7b2c663007d8b9
- https://git.kernel.org/stable/c/bedd7dee72588c838f5b67197ea8b387e7beb918
- https://git.kernel.org/stable/c/d3d0eabe6e39b024deb3e085e2d408d037e967c3