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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
77da9389b9d5f07d54fda092d1ab56002ec0019a to < f1c966eb6ed5e190c90a56c5bdaa69967de39f21affected77da9389b9d5f07d54fda092d1ab56002ec0019a to < 21f51434c47d8628b62275ae6c6ad6b573abcd02affected77da9389b9d5f07d54fda092d1ab56002ec0019a to < 50cff3f112d64db6e5f57355f79bc837db8fe132affected77da9389b9d5f07d54fda092d1ab56002ec0019a to < 43f830e2bb84b22ca824b20bb861d823ecb520bdaffected77da9389b9d5f07d54fda092d1ab56002ec0019a to < ee3f011250104129893d8e9599147e457d4d7280affected
Linux Linux
Default version status: affected
4.20affected0 to < 4.20unaffected6.6.160 to ≤ 6.6.*unaffected6.12.113 to ≤ 6.12.*unaffected6.18.57 to ≤ 6.18.*unaffected7.2.11 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21 ↗
- https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02 ↗
- https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132 ↗
- https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd ↗
- https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280 ↗