CVE-2026-64357
Description
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix exchmaps reservation limit check
xfs_exchmaps_estimate_overhead() adds the bmbt and rmapbt
overhead to a local resblks variable, but the final UINT_MAX
check still tests req->resblks. That is the reservation value
from before the overhead was added.
The computed value is stored back in req->resblks and later passed
to xfs_trans_alloc(), whose block reservation argument is unsigned
int. Check the computed reservation so the existing limit applies
to the value that will be used.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 966ceafc7a437105ecfe1cadb3747b2965a260ca < c597c8580d50127fc1221b5a5b653a94d49e23e3, 966ceafc7a437105ecfe1cadb3747b2965a260ca < a62ef2d13d6e7270dd5e88c6082bf2d0edcd5112, 966ceafc7a437105ecfe1cadb3747b2965a260ca < 4707344b0d36d1012c8a1716e20167cd3afdd5f1, 966ceafc7a437105ecfe1cadb3747b2965a260ca < 0a5213bbff62b51c7d4999ac8c7e11ea57d00d45 |
| Linux | Linux | — | 6.10, 0 < 6.10, 6.12.96 ≤ 6.12.*, 6.18.39 ≤ 6.18.* … |
References (4)