CVE-2023-2236 — Use-after-free in Linux kernel's Performance Events subsystem
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fp…
Published: 2023-05-01 · CVSS: 7.8 · CVSS 3.1
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7