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THREAT OPS › Threat News › [NVD] CVE-2026-64567 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, __load_free_space_cache() takes num_entries and num_bitmaps straight from the on-disk btrfs_free_space_header. Tha

[NVD] CVE-2026-64567 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, __load_free_space_cache() takes num_entries and num_bitmaps straight from the on-disk btrfs_free_space_header. Tha

mednvdPublished 2026-08-05

CVE-2026-64567 CVSS: 7.8 HIGH Published: 2026-08-05T08:16:36.277

In the Linux kernel, the following vulnerability has been resolved:

btrfs: reject free space cache with more entries than pages

When loading a v1 free space cache, __load_free_space_cache() takes num_entries and num_bitmaps straight from the on-disk btrfs_free_space_header. That header is stored in the tree_root under a key with t

Indicators of compromise

CVE-2026-64567cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-64567