CVE-2023-1872 — Use-after-free in Linux kernel's io_uring subsystem
A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of …
Published: 2023-04-12 · CVSS: 7.8 · CVSS 3.1
A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7