{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74354", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.887Z", "datePublished": "2026-08-15T05:58:40.067Z", "dateUpdated": "2026-08-15T05:58:40.067Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:58:40.067Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Take mmap_lock in zap_pages()\n\nzap_vma_range() requires the owning mm's mmap_lock to be held.\n\nTaking mmap_read_lock under arena->lock would AB-BA against\narena_vm_close() and arena_map_mmap(), both of which run with\nmmap_write_lock held and then acquire arena->lock. Instead drop\narena->lock, mmget_not_zero() the vma's mm, take mmap_read_lock, and\nre-resolve the vma via find_vma() since it may have been unmapped or\nreplaced while waiting.\n\nTrack processed vmls with a per-call generation in vml->zap_gen and\nserialize zap_pages() callers with a new arena->zap_mutex so\nconcurrent callers on different uaddr ranges do not mark each other's\nvmls processed before the zap is done."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/arena.c"], "versions": [{"version": "317460317a02a1af512697e6e964298dedd8a163", "lessThan": "36b1d997866f6083d33934983aa2ce0a184ed642", "status": "affected", "versionType": "git"}, {"version": "317460317a02a1af512697e6e964298dedd8a163", "lessThan": "80b89d0226a05e8b67969de99c31b51fcd54f76a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/arena.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.9", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/36b1d997866f6083d33934983aa2ce0a184ed642"}, {"url": "https://git.kernel.org/stable/c/80b89d0226a05e8b67969de99c31b51fcd54f76a"}], "title": "bpf: Take mmap_lock in zap_pages()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/arena.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "36b1d997866f6083d33934983aa2ce0a184ed642", "status": "affected", "version": "317460317a02a1af512697e6e964298dedd8a163", "versionType": "git"}, {"lessThan": "80b89d0226a05e8b67969de99c31b51fcd54f76a", "status": "affected", "version": "317460317a02a1af512697e6e964298dedd8a163", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/arena.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Take mmap_lock in zap_pages()\n\nzap_vma_range() requires the owning mm's mmap_lock to be held.\n\nTaking mmap_read_lock under arena->lock would AB-BA against\narena_vm_close() and arena_map_mmap(), both of which run with\nmmap_write_lock held and then acquire arena->lock. Instead drop\narena->lock, mmget_not_zero() the vma's mm, take mmap_read_lock, and\nre-resolve the vma via find_vma() since it may have been unmapped or\nreplaced while waiting.\n\nTrack processed vmls with a per-call generation in vml->zap_gen and\nserialize zap_pages() callers with a new arena->zap_mutex so\nconcurrent callers on different uaddr ranges do not mark each other's\nvmls processed before the zap is done."}], "id": "CVE-2026-74354", "lastModified": "2026-08-15T06:22:36.773", "metrics": {}, "published": "2026-08-15T06:22:36.773", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/36b1d997866f6083d33934983aa2ce0a184ed642"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80b89d0226a05e8b67969de99c31b51fcd54f76a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"created": "2026-08-15T13:00:05.627735+00:00", "updated": "2026-08-15T13:00:05.627740+00:00", "vendors": [], "weaknesses": ["CWE-754", "CWE-362"]}