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CVE-2023-1583 (GCVE-0-2023-1583)

Vulnerability from cvelistv5 – Published: 2023-03-24 00:00 – Updated: 2025-02-20 18:50
VLAI
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-20 18:49 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a Linux kernel Affected: affected kernel 5.19, 6.0, 6.1, 6.2, 6.3
Show details on NVD website
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