linux: In the Linux kernel, the following vulnerability has been resolved: kheaders: Use array declaration instead of char...
CVE-2023-54056 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: High.
In the Linux kernel, the following vulnerability has been resolved: kheaders: Use array declaration instead of char Under CONFIG_FORTIFY_SOURCE, memcpy() will check the size of destination and source buffers. Defining kernel_headers_data as "char" would trip this check. Since these addresses are treated as byte arrays, define them as arrays (as done everywhere else). This was seen with: $ cat /sys/kernel/kheaders.tar.xz >> /dev/null detected buffer overflow in memcpy kernel BUG at lib/string_helpers.c:1027! ... RIP: 0010:fortify_panic+0xf/0x20 [...] Call Trace: <TASK> ikheaders_read+0x45/0x50 [kheaders] kernfs_fop_read_iter+0x1a4/0x2f0 ...
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-2023-54056 | Dec 24, 2025 |
| linux · Debian 13.5 (trixie) | 6.3.7-1 | DEBIAN-CVE-2023-54056 | Dec 24, 2025 |
| linux · Debian 14 | 6.3.7-1 | DEBIAN-CVE-2023-54056 | Dec 24, 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 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.