Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 966ceafc7a437105ecfe1cadb3747b2965a260ca before c597c8580d50127fc1221b5a5b653a94d49e23e3; affected 966ceafc7a437105ecfe1cadb3747b2965a260ca before a62ef2d13d6e7270dd5e88c6082bf2d0edcd5112; affected 966ceafc7a437105ecfe1cadb3747b2965a260ca before 4707344b0d36d1012c8a1716e20167cd3afdd5f1; affected 966ceafc7a437105ecfe1cadb3747b2965a260ca before 0a5213bbff62b51c7d4999ac8c7e11ea57d00d45 |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.