Answer in brief
CVE-2026-31514 records a Unknown severity vulnerability in erofs: set fileio bio failed in short read case. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ce63cb62d794c98c7631c2296fa845f2a8d0a4a1 <d1ba7d6b3cd1757b108d7b6856c92ae661d6c323 || >=ce63cb62d794c98c7631c2296fa845f2a8d0a4a1 <5cf3972c8221abdb1b464a14ccf8103d840b9085 || >=ce63cb62d794c98c7631c2296fa845f2a8d0a4a1 <5a5f23ef5431639db1ac3a0b274aef3a84cc413c || >=ce63cb62d794c98c7631c2296fa845f2a8d0a4a1 <eade54040384f54b7fb330e4b0975c5734850b3c | d1ba7d6b3cd1757b108d7b6856c92ae661d6c323, 5cf3972c8221abdb1b464a14ccf8103d840b9085, 5a5f23ef5431639db1ac3a0b274aef3a84cc413c, eade54040384f54b7fb330e4b0975c5734850b3c |
| Linux/Linuxgeneric | 6.12 | Not reported |
Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 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.
Quoted source text, attributed separately from HOL analysis.