What’s Vulnerable › Vulnerabilities

CVE-2026-68168: afs: Fix afs_edit_dir_remove() to get, not find, block 0

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix afs_edit_dir_remove() to get, not find, block 0 Fix afs_edit_dir_remove() to use afs_dir_get_block() to get block 0 rather than afs_dir_find_block() as the latter caches the found block in the afs_dir_iter and may[*] switch out the page it's on if another afs_dir_find_block() is done. This parallels what afs_edit_dir_add() does. [*] There's more than one block per page.

Affected products

• Linux kernel: 6.14 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/62d9853aa4ce6e9797b6949804891be14b219752
• https://git.kernel.org/stable/c/bfdfc7782ada6f3a4df7182889b66039f8e4131c
• https://git.kernel.org/stable/c/f2b293359924117736218701ebd8b40618d73e6f

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