Answer in brief
CVE-2026-98907 records a Unknown severity vulnerability in btrfs: protect sb_write_pointer() with invalidate lock. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c9b38f2eab5a9bd74087390318d93ccdd8d2deff || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a0dc28359a8a26f970ccd250b126a2e0bd4118a5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a6c92aa7242a04e4349c0ea213dbf703a1c9891 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a58cab4535f085adc0f93d7efd7952ef437371da || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <80cd97c5e90096d040a623851795eac92fbd0ff1 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <123b9a545f4d0348e81f558a032bf2a93ee5722f || >=0 <5.15.222 || >=0 <6.1.189 || >=0 <6.6.158 || >=0 <6.12.111 || >=0 <6.18.53 | c9b38f2eab5a9bd74087390318d93ccdd8d2deff, a0dc28359a8a26f970ccd250b126a2e0bd4118a5, 1a6c92aa7242a04e4349c0ea213dbf703a1c9891, a58cab4535f085adc0f93d7efd7952ef437371da, 80cd97c5e90096d040a623851795eac92fbd0ff1, 123b9a545f4d0348e81f558a032bf2a93ee5722f, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53 |
Published upstream
Oct 23, 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: btrfs: protect sb_write_pointer() with invalidate lock sb_write_pointer() reads the super block from the block device page cache using read_cache_page_gfp(). This has the same race with BLKBSZSET as the one fixed by commit 3f29d661e568 ("btrfs: sync read disk super and set block size"). Take the mapping invalidate lock around read_cache_page_gfp() to serialize the read against block size changes.
Quoted source text, attributed separately from HOL analysis.