linux: In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUG_ON in ext4_mb_release_group_p...
CVE-2023-53450 is fixed in 20 products on 1 platform, first by ALAS2023-2023-184, released May 25, 2023. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUG_ON in ext4_mb_release_group_pa() If a malicious fuzzer overwrites the ext4 superblock while it is mounted such that the s_first_data_block is set to a very large number, the calculation of the block group can underflow, and trigger a BUG_ON check. Change this to be an ext4_warning so that we don't crash the kernel.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-debuginfo · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-devel · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-headers · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-libbpf · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-livepatch-6.1.29-47.49 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-tools · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| linux · Debian 12.15 (bookworm) | 6.1.37-1 | DEBIAN-CVE-2023-53450 | Oct 1, 2025 |
| linux · Debian 13.5 (trixie) | 6.3.7-1 | DEBIAN-CVE-2023-53450 | Oct 1, 2025 |
| linux · Debian 14 | 6.3.7-1 | DEBIAN-CVE-2023-53450 | Oct 1, 2025 |
| perf · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| python3-perf · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.29-47.49.amzn2023 | ALAS2023-2023-184 | May 25, 2023 |
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