CVE-2026-68168
afs: Fix afs_edit_dir_remove() to get, not find, block 0
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.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel.
- Ensure the afs_edit_dir_remove() function gets block 0.
- Replace afs_dir_find_block() with afs_dir_get_block().
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68168.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68168 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68168
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68168 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68168 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'f2b293359924117736218701ebd8b40618d73e6f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'bfdfc7782ada6f3a4df7182889b66039f8e4131c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': '62d9853aa4ce6e9797b6949804891be14b219752', 'versionType': 'git'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'f2b293359924117736218701ebd8b40618d73e6f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'bfdfc7782ada6f3a4df7182889b66039f8e4131c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': '62d9853aa4ce6e9797b6949804891be14b219752', 'versionType': 'git'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'f2b293359924117736218701ebd8b40618d73e6f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': 'bfdfc7782ada6f3a4df7182889b66039f8e4131c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e', 'lessThan': '62d9853aa4ce6e9797b6949804891be14b219752', 'versionType': 'git'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/afs/dir_edit.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/62d9853aa4ce6e9797b6949804891be14b219752 Added Reference https://git.kernel.org/stable/c/bfdfc7782ada6f3a4df7182889b66039f8e4131c Added Reference https://git.kernel.org/stable/c/f2b293359924117736218701ebd8b40618d73e6f