CVE-2026-99080

fs: Free any excess xarray nodes in clear_inode()

State: Published
Severity: Not scored
Published: Oct 23, 2026
Updated: Oct 30, 2026
Reserved: Sep 25, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	77da9389b9d5f07d54fda092d1ab56002ec0019a to before 3e837269bbfe78a602e0c259d57ffafe7a4df3b2Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before 813779d7974e51a6950c7237708853b129d564e1Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before 04456642e33022cc53562a91393a09d492124b44Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before f1c966eb6ed5e190c90a56c5bdaa69967de39f21Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before 21f51434c47d8628b62275ae6c6ad6b573abcd02Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before 50cff3f112d64db6e5f57355f79bc837db8fe132Affected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before 43f830e2bb84b22ca824b20bb861d823ecb520bdAffected 77da9389b9d5f07d54fda092d1ab56002ec0019a to before ee3f011250104129893d8e9599147e457d4d7280Affected
LinuxLinux	4.20Affected before 4.20Not affected 5.10.273 through 5.10.Not affected 5.15.224 through 5.15.Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.113 through 6.12.Not affected 6.18.57 through 6.18.Not affected 7.2.11 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

77da9389b9d5f07d54fda092d1ab56002ec0019a to before 3e837269bbfe78a602e0c259d57ffafe7a4df3b2Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before 813779d7974e51a6950c7237708853b129d564e1Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before 04456642e33022cc53562a91393a09d492124b44Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before f1c966eb6ed5e190c90a56c5bdaa69967de39f21Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before 21f51434c47d8628b62275ae6c6ad6b573abcd02Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before 50cff3f112d64db6e5f57355f79bc837db8fe132Affected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before 43f830e2bb84b22ca824b20bb861d823ecb520bdAffected
77da9389b9d5f07d54fda092d1ab56002ec0019a to before ee3f011250104129893d8e9599147e457d4d7280Affected

LinuxLinux

4.20Affected
before 4.20Not affected
5.10.273 through 5.10.*Not affected
5.15.224 through 5.15.*Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.113 through 6.12.*Not affected
6.18.57 through 6.18.*Not affected
7.2.11 through 7.2.*Not affected
7.3 and laterNot affected

References

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