Answer in brief
CVE-2026-68149 records a Unknown severity vulnerability in fs: preserve ACL_DONT_CACHE state in forget_cached_acl(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=facd61053cff100973921d4d45d47cf53c747ec6 <b98fad81f1202b0eb26aacf3ff4cc7a21ed3b5bf || >=facd61053cff100973921d4d45d47cf53c747ec6 <834ddf899484a2f23129080e8773bc04f4691d07 || >=facd61053cff100973921d4d45d47cf53c747ec6 <a019b074903b3ad0a9726087efd0e8291452023b || >=facd61053cff100973921d4d45d47cf53c747ec6 <ca03a7984a34f48085fd013e0d2cf4e6420b4acf || >=facd61053cff100973921d4d45d47cf53c747ec6 <4b9a5458d02e214ef2b384124ca626e3e381d778 | b98fad81f1202b0eb26aacf3ff4cc7a21ed3b5bf, 834ddf899484a2f23129080e8773bc04f4691d07, a019b074903b3ad0a9726087efd0e8291452023b, ca03a7984a34f48085fd013e0d2cf4e6420b4acf, 4b9a5458d02e214ef2b384124ca626e3e381d778 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: fs: preserve ACL_DONT_CACHE state in forget_cached_acl() The ACL_DONT_CACHE state is meant to be a constant state for the inode for filesystems that want to opt out of posix acl caching. Commit facd61053cff1 ("fuse: fixes after adapting to new posix acl api") used this facility to opt out of posix acl caching for fuse inodes with fuse server that does not negotiate FUSE_POSIX_ACL (fc->posix_acl). The commit also takes care to gate the forget_all_cached_acls() call in fuse_set_acl() on fc->posix_acl because there is no need for it, but there are other placed in fuse code which call forget_all_cached_acls() unconditional to fc->posix_acl and those cause the loss of the ACL_DONT_CACHE state. This is not only a functional bug. Properly timed, a get_acl() from this fuse filesystem can return a stale cached value, as was observed in tests, because set_acl() does not invalidate the unintentional acl cache. We could fix this in fuse, but it actually makes no sense for the vfs helper forget_cached_acl() to invalidate the ACL_DONT_CACHE state, so let it not do that to fix fuse and future users of ACL_DONT_CACHE.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68149 records a Unknown severity vulnerability in fs: preserve ACL_DONT_CACHE state in forget_cached_acl(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=facd61053cff100973921d4d45d47cf53c747ec6 <b98fad81f1202b0eb26aacf3ff4cc7a21ed3b5bf || >=facd61053cff100973921d4d45d47cf53c747ec6 <834ddf899484a2f23129080e8773bc04f4691d07 || >=facd61053cff100973921d4d45d47cf53c747ec6 <a019b074903b3ad0a9726087efd0e8291452023b || >=facd61053cff100973921d4d45d47cf53c747ec6 <ca03a7984a34f48085fd013e0d2cf4e6420b4acf || >=facd61053cff100973921d4d45d47cf53c747ec6 <4b9a5458d02e214ef2b384124ca626e3e381d778 | b98fad81f1202b0eb26aacf3ff4cc7a21ed3b5bf, 834ddf899484a2f23129080e8773bc04f4691d07, a019b074903b3ad0a9726087efd0e8291452023b, ca03a7984a34f48085fd013e0d2cf4e6420b4acf, 4b9a5458d02e214ef2b384124ca626e3e381d778 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: fs: preserve ACL_DONT_CACHE state in forget_cached_acl() The ACL_DONT_CACHE state is meant to be a constant state for the inode for filesystems that want to opt out of posix acl caching. Commit facd61053cff1 ("fuse: fixes after adapting to new posix acl api") used this facility to opt out of posix acl caching for fuse inodes with fuse server that does not negotiate FUSE_POSIX_ACL (fc->posix_acl). The commit also takes care to gate the forget_all_cached_acls() call in fuse_set_acl() on fc->posix_acl because there is no need for it, but there are other placed in fuse code which call forget_all_cached_acls() unconditional to fc->posix_acl and those cause the loss of the ACL_DONT_CACHE state. This is not only a functional bug. Properly timed, a get_acl() from this fuse filesystem can return a stale cached value, as was observed in tests, because set_acl() does not invalidate the unintentional acl cache. We could fix this in fuse, but it actually makes no sense for the vfs helper forget_cached_acl() to invalidate the ACL_DONT_CACHE state, so let it not do that to fix fuse and future users of ACL_DONT_CACHE.
Quoted source text, attributed separately from HOL analysis.