Vulnerability Description
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.
References
- https://git.kernel.org/stable/c/123b9a545f4d0348e81f558a032bf2a93ee5722f
- https://git.kernel.org/stable/c/80cd97c5e90096d040a623851795eac92fbd0ff1
FAQ
What is CVE-2026-98907?
CVE-2026-98907 is a documented vulnerability. 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 u...
How severe is CVE-2026-98907?
CVSS scoring is not yet available for CVE-2026-98907. Check NVD for updates.
Is there a patch for CVE-2026-98907?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.