Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fs: Free any excess xarray nodes in clear_inode() For many years we've had a hard to hit leak of xarray nodes. Hugh documented it well in commit 786b31121a2c. Recently people and syzbot have found ways to force it to happen with madvise. Rather than fix the leaks where they happen, just call xa_destroy() which has the side-effect of cycling the i_pages lock.
References
- https://git.kernel.org/stable/c/04456642e33022cc53562a91393a09d492124b44
- https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02
- https://git.kernel.org/stable/c/3e837269bbfe78a602e0c259d57ffafe7a4df3b2
- https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd
- https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132
- https://git.kernel.org/stable/c/813779d7974e51a6950c7237708853b129d564e1
- https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280
- https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21
FAQ
What is CVE-2026-99080?
CVE-2026-99080 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: fs: Free any excess xarray nodes in clear_inode() For many years we've had a hard to hit leak of xarray nodes. Hugh documented it...
How severe is CVE-2026-99080?
CVSS scoring is not yet available for CVE-2026-99080. Check NVD for updates.
Is there a patch for CVE-2026-99080?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.