CVE-2023-2236
Use-after-free in Linux kernel's Performance Events subsystem
Summary
Use-after-free in Linux kernel's Performance Events subsystem
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-2236 linux Fixed in: 6.0.12-1
References
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- patch git.kernel.org
- web git.kernel.org
- web kernel.dance