Answer in brief
CVE-2026-53272 records a High severity (CVSS 7.8) vulnerability in erofs: fix use-after-free on sbi->sync_decompress. 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.
CVSS is 7.8. 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 | >=40452ffca3c1a0f2994e826f9fa213b107f1a2d4 <59db5d8bcc65e04d8598afd81ec3a18edb407470 || >=40452ffca3c1a0f2994e826f9fa213b107f1a2d4 <86ab00cf81d44b675bb23db62b88fd76c8ac8cea || >=40452ffca3c1a0f2994e826f9fa213b107f1a2d4 <00bf6868df65fa95b3854996246d15759fdc7070 || >=40452ffca3c1a0f2994e826f9fa213b107f1a2d4 <95caf60da33d87ed26c28993620f0d92487b0296 || >=40452ffca3c1a0f2994e826f9fa213b107f1a2d4 <1aee05e814d292064bf5fa15733741040cdc48ba | 59db5d8bcc65e04d8598afd81ec3a18edb407470, 86ab00cf81d44b675bb23db62b88fd76c8ac8cea, 00bf6868df65fa95b3854996246d15759fdc7070, 95caf60da33d87ed26c28993620f0d92487b0296, 1aee05e814d292064bf5fa15733741040cdc48ba |
| Linux/Linuxgeneric | 5.17 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: erofs: fix use-after-free on sbi->sync_decompress z_erofs_decompress_kickoff() can race with filesystem unmount, causing a use-after-free on sbi->sync_decompress. When I/O completes, z_erofs_endio() calls z_erofs_decompress_kickoff() to queue z_erofs_decompressqueue_work() asynchronously. Then, after all folios are unlocked, unmount workflow can proceed and sbi will be freed before accessing to sbi->sync_decompress. Thread (unmount) I/O completion kworker queue_work z_erofs_decompressqueue_work (all folios are unlocked) cleanup_mnt .. erofs_kill_sb erofs_sb_free kfree(sbi) access sbi->sync_decompress // UAF!!
Quoted source text, attributed separately from HOL analysis.