CVE-2026-31543
crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying
Reported by linux · Published April 24, 2026
In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enabled, read_key_from_user_keying() logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes.
EPSS 0.12% · 1.9th percentile
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| kernel6.18-libbpf-devel | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| kernel6.18-libbpf | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| kernel6.18-modules-extra | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| perf6.18 | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| kernel6.18-libbpf-static | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| kernel6.18 | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| kernel6.18-devel | Amazon Linux | 1:6.18.20-20.229.amzn2023 |
| linux_kernel | linux | 6.19.10, 6.18.20 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132, 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132, 479e58549b0fa7e80f1e0b9e69e0a2a8e6711132 |
| Linux | Linux | 6.16, 0, 6.18.20 |
| amazon:2023 | kernel6.18-libbpf-devel | 0 |
| amazon:2023 | kernel6.18-libbpf | 0 |
| amazon:2023 | kernel6.18-modules-extra | 0 |
| amazon:2023 | perf6.18 | 0 |
| amazon:2023 | kernel6.18-libbpf-static | 0 |
| amazon:2023 | kernel6.18 | 0 |
| amazon:2023 | kernel6.18-devel | 0 |
| linux | linux_kernel | 6.16, 6.16, 6.16 |
| Linux | Linux | 6.19.10, 0, 7.0 |
| amazon:2023 | kernel6.18-modules-extra-common | 0 |
| amazon:2023 | kernel6.18-tools-devel | 0 |
| amazon:2023 | kernel6.18-headers | 0 |
| amazon:2023 | python3-perf6.18 | 0 |
| amazon:2023 | kernel-livepatch-6.18.20-20.229 | 0 |
| amazon:2023 | bpftool6.18 | 0 |
| amazon:2023 | kernel6.18-tools | 0 |
Timeline
- Apr 24, 2026 CVE Published
- Apr 24, 2026 Security Advisory (102 in total, the first dated here)
- May 11, 2026 CVE Updated
- May 18, 2026 EPSS Score (25 in total, the first dated here)
- Jul 18, 2026 Coalition ESS Score
- Aug 11, 2026 Distribution Patch (97 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-31543
vulnetix vdb fixes CVE-2026-31543Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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