CVE-2026-98907
btrfs: protect sb_write_pointer() with invalidate lock
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 23, 2026 |
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Affected Versions
Linux / Linux
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
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/c9b38f2eab5a9bd74087390318d93ccdd8d2deff git.kernel.org: https://git.kernel.org/stable/c/a0dc28359a8a26f970ccd250b126a2e0bd4118a5 git.kernel.org: https://git.kernel.org/stable/c/1a6c92aa7242a04e4349c0ea213dbf703a1c9891 git.kernel.org: https://git.kernel.org/stable/c/a58cab4535f085adc0f93d7efd7952ef437371da git.kernel.org: https://git.kernel.org/stable/c/80cd97c5e90096d040a623851795eac92fbd0ff1 git.kernel.org: https://git.kernel.org/stable/c/123b9a545f4d0348e81f558a032bf2a93ee5722f