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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2023-23816 | 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. |
Ubuntu USN |
USN-6033-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-6175-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-6186-1 | Linux kernel vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 20 Feb 2025 19:15:00 +0000
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|---|---|---|
| Metrics |
ssvc
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-02-20T18:50:07.985Z
Reserved: 2023-03-22T00:00:00.000Z
Link: CVE-2023-1583
Updated: 2024-08-02T05:57:23.335Z
Status : Modified
Published: 2023-03-24T22:15:07.137
Modified: 2025-02-20T19:15:11.037
Link: CVE-2023-1583
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN