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CVE-2023-2236

Use-after-free in Linux kernel's Performance Events subsystem PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linux Kernelaffected 5.19 before 6.1

CWE

CWE-416

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.