{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64156", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.038Z", "datePublished": "2026-07-19T15:40:44.277Z", "dateUpdated": "2026-07-19T15:40:44.277Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:40:44.277Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs, afs: Fix write skipping in dir/link writepages\n\nFix netfs_write_single() and afs_single_writepages() to better handle a\nwrite that would be skipped due to lock contention and WB_SYNC_NONE by\nreturning 1 from netfs_write_single() if it skipped and making\nafs_single_writepages() skip also. If a skip occurs, the inode must be\nre-marked as the VFS may have cleared the mark.\n\nThis is really only theoretical for directories in netfs_write_single() as\nthe only path to that is through afs_single_writepages() that takes the\n->validate_lock around it, thereby serialising it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/afs/dir.c", "fs/netfs/write_issue.c"], "versions": [{"version": "6dd80936618c4ff852d4db73aca400351d9bd9f0", "lessThan": "77bb293049d61e04c12b24ebbffafaf5ab36af90", "status": "affected", "versionType": "git"}, {"version": "6dd80936618c4ff852d4db73aca400351d9bd9f0", "lessThan": "f91e10435c0dd37c48b1b25e6236284f656ddc0c", "status": "affected", "versionType": "git"}, {"version": "6dd80936618c4ff852d4db73aca400351d9bd9f0", "lessThan": "9871938f99cc6cb266a77265491660e2375271f5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/afs/dir.c", "fs/netfs/write_issue.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/77bb293049d61e04c12b24ebbffafaf5ab36af90"}, {"url": "https://git.kernel.org/stable/c/f91e10435c0dd37c48b1b25e6236284f656ddc0c"}, {"url": "https://git.kernel.org/stable/c/9871938f99cc6cb266a77265491660e2375271f5"}], "title": "netfs, afs: Fix write skipping in dir/link writepages", "x_generator": {"engine": "bippy-1.2.0"}}}}

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