Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-1583

A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.7%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2023-1583


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