Answer in brief
CVE-2026-98443 records a High severity (CVSS 7.8) vulnerability in xfs: fix cursor and pointer handling when recovering iunlink buckets. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=04755d2e5821b3afbaadd09fe5df58d04de36484 <8c9d5b8a96d6b93eb24e07b4163c89341ba29bd1 || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <66a2179d02668f8df44b1a249899006f3ba38ea0 || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <961c717e6bf0e53c2c2b1fe4aef1add9390fedab || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <65f39d09d73718611cee40399179323b5d4ead00 | 8c9d5b8a96d6b93eb24e07b4163c89341ba29bd1, 66a2179d02668f8df44b1a249899006f3ba38ea0, 961c717e6bf0e53c2c2b1fe4aef1add9390fedab, 65f39d09d73718611cee40399179323b5d4ead00 |
| Linux/Linuxgeneric | 6.0 | Not reported |
| Linux/Linuxgeneric | >=04755d2e5821b3afbaadd09fe5df58d04de36484 <47a948ba653a463d429e02fda2f06a3d6b78666d || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <8c9d5b8a96d6b93eb24e07b4163c89341ba29bd1 || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <66a2179d02668f8df44b1a249899006f3ba38ea0 || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <961c717e6bf0e53c2c2b1fe4aef1add9390fedab || >=04755d2e5821b3afbaadd09fe5df58d04de36484 <65f39d09d73718611cee40399179323b5d4ead00 | 47a948ba653a463d429e02fda2f06a3d6b78666d, 8c9d5b8a96d6b93eb24e07b4163c89341ba29bd1, 66a2179d02668f8df44b1a249899006f3ba38ea0, 961c717e6bf0e53c2c2b1fe4aef1add9390fedab, 65f39d09d73718611cee40399179323b5d4ead00 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: xfs: fix cursor and pointer handling when recovering iunlink buckets LOLLM pointed out a bug in xlog_recover_iunlink_bucket: 1. We don't null out prev_ip after releasing it, which can lead to UAF problems if the inodegc flush call in the loop fails. at which point I noticed even more bugs: 2. If the inodegc flush inside the loop fails, we also leak @ip. 3. We set prev_agino to agino having already advanced agino, which results in inodes with i_prev_unlinked set to itself. 4. If we exit the bottom of the loop with prev_ip set, then prev_ip aliases ip and we also set its i_prev_unlinked to itself. Bugs 3 and 4 introduce loops into the unlinked list, though these loops don't surface because we immediately flush each unlinked inode after loading it. Fix all of these issues.
Quoted source text, attributed separately from HOL analysis.