CVE-2026-97548
High
Description
In the Linux kernel, the following vulnerability has been resolved: xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions The _maxlevels_ondisk functions are used to compute the size of in-memory btree cursors for each btree type. Unfortunately, LOLLM noticed that the rtrmap and rtrefcount versions of these functions forget to account for the inode root, which means that we could access beyond the end of the cursor given a sufficiently large btree. Fix this.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedSep 25, 2026
First seenSep 25, 2026
How to fix
Update
- Linux Linux108114437915e61e8f88d1cbcc442c3f886a347e, 84316cb25af95a60e655ccc8fe646bb5ad631b71, aa301322f72f82f26e4ba0826018d41388ab9896 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 9abe03a0e4f978615a2b1b484b8d09ca84c16ea0 ≤ v < 108114437915e61e8f88d1cbcc442c3f886a347e, 9abe03a0e4f978615a2b1b484b8d09ca84c16ea0 ≤ v < 84316cb25af95a60e655ccc8fe646bb5ad631b71, 9abe03a0e4f978615a2b1b484b8d09ca84c16ea0 ≤ v < aa301322f72f82f26e4ba0826018d41388ab9896, 6.14 | 108114437915e61e8f88d1cbcc442c3f886a347e, 84316cb25af95a60e655ccc8fe646bb5ad631b71, aa301322f72f82f26e4ba0826018d41388ab9896 |
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