linux: A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in t...
CVE-2023-1583 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2023-1583, released March 24, 2023. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| bpftool-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-headers · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-libbpf-static · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-livepatch-6.1.23-36.46 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| kernel-tools-devel · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| linux · Debian 12.15 (bookworm) | 6.1.25-1 | DEBIAN-CVE-2023-1583 | Mar 24, 2023 |
| linux · Debian 13.5 (trixie) | 6.1.25-1 | DEBIAN-CVE-2023-1583 | Mar 24, 2023 |
| linux · Debian 14 | 6.1.25-1 | DEBIAN-CVE-2023-1583 | Mar 24, 2023 |
| perf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| perf-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| python3-perf · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
| python3-perf-debuginfo · amzn 2023 | 6.1.23-36.46.amzn2023 | ALAS2023-2025-1054 | Jul 1, 2025 |
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