CVE-2026-64357
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-07-25
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 966ceafc7a437105ecfe1cadb3747b2965a260ca < c597c8580d50127fc1221b5a5b653a94d49e23e3 |
| Linux | Linux | 966ceafc7a437105ecfe1cadb3747b2965a260ca < a62ef2d13d6e7270dd5e88c6082bf2d0edcd5112 |
| Linux | Linux | 966ceafc7a437105ecfe1cadb3747b2965a260ca < 4707344b0d36d1012c8a1716e20167cd3afdd5f1 |
| Linux | Linux | 966ceafc7a437105ecfe1cadb3747b2965a260ca < 0a5213bbff62b51c7d4999ac8c7e11ea57d00d45 |
| Linux | Linux | 6.10 |
| linux | linux_kernel | 6.10 – 6.12.96 |