linux: In the Linux kernel, the following vulnerability has been resolved: udf: Do not bother merging very long extents Wh...
CVE-2023-53506 is fixed in 20 products on 1 platform, first by ALAS2023-2023-138, released March 20, 2023. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: udf: Do not bother merging very long extents When merging very long extents we try to push as much length as possible to the first extent. However this is unnecessarily complicated and not really worth the trouble. Furthermore there was a bug in the logic resulting in corrupting extents in the file as syzbot reproducer shows. So just don't bother with the merging of extents that are too long together.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-headers · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-livepatch-6.1.19-30.43 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| linux · Debian 12.15 (bookworm) | 6.1.20-1 | DEBIAN-CVE-2023-53506 | Oct 1, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.20-1 | DEBIAN-CVE-2023-53506 | Oct 1, 2025 |
| linux · Debian 14 | 6.1.20-1 | DEBIAN-CVE-2023-53506 | Oct 1, 2025 |
| perf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| python3-perf · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.19-30.43.amzn2023 | ALAS2023-2023-138 | Mar 20, 2023 |
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