CVE-2026-31514
erofs: set fileio bio failed in short read case
Reported by linux · Published April 22, 2026
In the Linux kernel, the following vulnerability has been resolved: erofs: set fileio bio failed in short read case For file-backed mount, IO requests are handled by vfs_iocb_iter_read(). However, it can be interrupted by SIGKILL, returning the number of bytes actually copied. Unused folios in bio are unexpectedly marked as uptodate. vfs_read filemap_read filemap_get_pages filemap_readahead erofs_fileio_readahead erofs_fileio_rq_submit vfs_iocb_iter_read filemap_read filemap_get_pages <= detect signal erofs_fileio_ki_complete <= set all folios uptodate This patch addresses this by setting short read bio with an error directly.
EPSS 0.12% · 2.0th 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 |
|---|---|---|
| perf6.12 | Amazon Linux | 1:6.12.80-105.147.amzn2023 |
| linux_kernel | linux | 6.19.11, 6.18.21, 6.12.80 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | ce63cb62d794c98c7631c2296fa845f2a8d0a4a1, ce63cb62d794c98c7631c2296fa845f2a8d0a4a1, ce63cb62d794c98c7631c2296fa845f2a8d0a4a1 |
| Linux | Linux | 6.12, 0, 6.12.80 |
| amazon:2023 | perf6.12 | 0 |
| linux | linux_kernel | 6.12, 6.12, 6.12 |
| amazon:2023 | kernel6.18-modules-extra | 0 |
| amazon:2023 | kernel6.12-libbpf-devel | 0 |
| amazon:2023 | kernel6.12-headers | 0 |
| amazon:2023 | python3-perf6.18 | 0 |
| amazon:2023 | kernel6.18-headers | 0 |
| amazon:2023 | kernel6.18 | 0 |
| amazon:2023 | bpftool6.12 | 0 |
| amazon:2023 | kernel6.18-modules-extra-common | 0 |
| amazon:2023 | bpftool6.18 | 0 |
| Linux | Linux | 7.0, *, * |
| amazon:2023 | kernel6.18-tools-devel | 0 |
| amazon:2023 | python3-perf6.12 | 0 |
| amazon:2023 | kernel6.18-tools | 0 |
| amazon:2023 | kernel6.12-modules-extra | 0 |
| amazon:2023 | kernel-livepatch-6.18.25-52.107 | 0 |
| amazon:2023 | kernel6.12-libbpf-static | 0 |
…and 9 more
Timeline
- Apr 22, 2026 CVE Published
- Apr 23, 2026 Security Advisory (97 in total, the first dated here)
- Apr 28, 2026 CVE Updated
- May 18, 2026 EPSS Score (24 in total, the first dated here)
- Jul 16, 2026 Coalition ESS Score
- Aug 11, 2026 Distribution Patch (92 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-31514
vulnetix vdb fixes CVE-2026-31514Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-31514/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart