CVE-2025-22114

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-22114", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.823Z", "datePublished": "2025-04-16T14:12:59.898Z", "dateUpdated": "2026-08-05T11:56:51.717Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:51.717Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: don't clobber ret in btrfs_validate_super()\n\nCommit 2a9bb78cfd36 (\"btrfs: validate system chunk array at\nbtrfs_validate_super()\") introduces a call to validate_sys_chunk_array()\nin btrfs_validate_super(), which clobbers the value of ret set earlier.\nThis has the effect of negating the validity checks done earlier, making\nit so btrfs could potentially try to mount invalid filesystems."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is reached by mounting a crafted btrfs image via the mount(2) path (open_ctree \u2192 btrfs_validate_mount_super), requiring local system access. Desktop distros brokering loop-device setup and mounting to active local sessions through udisks2/polkit make this a genuine local (not merely physical) path, alongside removable-media automount on kiosks and shared workstations.\nAC:L - The entire image is crafted deterministically offline \u2014 a valid superblock checksum, a legitimate 65+ byte sys_chunk_array so validate_sys_chunk_array() returns 0 and clobbers ret, sectorsize=4096 to satisfy alignment checks, and nodesize=1 MiB to overflow the 16-entry page/folio arrays. There is no race, no memory-layout dependency, and no condition outside the attacker's control.\nPR:L - On default desktop configurations an unprivileged local user in an active session can create a loop device and mount an arbitrary filesystem image through udisks2/polkit without additional authentication, and containers or fstab \"user\" entries provide equivalent paths. No real root in the init namespace is needed.\nUI:N - In the loop-device scenario the attacker performs the mount themselves; no separate victim has to open a file, click a prompt, or take any action.\nS:U - The corruption occurs in kernel memory during filesystem mount and is confined to the kernel's own security authority \u2014 there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The bypassed nodesize check yields an extent_buffer whose len vastly exceeds its backing storage, giving out-of-bounds reads of kernel memory, and BTRFS_MAX_ITEM_SIZE/csums_per_leaf underflow to enormous values; the bypassed fsid/metadata_uuid/dev_item.fsid checks additionally let a crafted device impersonate another filesystem. The resulting heap and stack corruption is leverageable for arbitrary kernel memory disclosure.\nI:H - btrfs_alloc_page_array() writes an attacker-chosen number of struct page pointers past a 16-entry on-stack array and past the extent_buffer slab object, an out-of-bounds write primitive exploitable for control-flow hijack. The same clobber also defeats btrfs_validate_write_super(), permitting corrupt superblocks to be committed to disk.\nA:H - The overflow reliably panics the kernel \u2014 via BUG() from the ASSERT where CONFIG_BTRFS_ASSERT is set, via stack-protector panic, or via oops from the nonsensical geometry (invalid sectorsize_bits shifts, zero/oversized nodesize) propagated throughout the mounted filesystem."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/disk-io.c"], "versions": [{"version": "2a9bb78cfd367fdeff74f15b1e98969912292d9e", "lessThan": "ef6800a2015e706e9852a5ec15263fec9990d012", "status": "affected", "versionType": "git"}, {"version": "2a9bb78cfd367fdeff74f15b1e98969912292d9e", "lessThan": "9db9c7dd5b4e1d3205137a094805980082c37716", "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/btrfs/disk-io.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ef6800a2015e706e9852a5ec15263fec9990d012"}, {"url": "https://git.kernel.org/stable/c/9db9c7dd5b4e1d3205137a094805980082c37716"}], "title": "btrfs: don't clobber ret in btrfs_validate_super()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/btrfs/disk-io.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "ef6800a2015e706e9852a5ec15263fec9990d012", "status": "affected", "version": "2a9bb78cfd367fdeff74f15b1e98969912292d9e", "versionType": "git"}, {"lessThan": "9db9c7dd5b4e1d3205137a094805980082c37716", "status": "affected", "version": "2a9bb78cfd367fdeff74f15b1e98969912292d9e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/btrfs/disk-io.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: don't clobber ret in btrfs_validate_super()\n\nCommit 2a9bb78cfd36 (\"btrfs: validate system chunk array at\nbtrfs_validate_super()\") introduces a call to validate_sys_chunk_array()\nin btrfs_validate_super(), which clobbers the value of ret set earlier.\nThis has the effect of negating the validity checks done earlier, making\nit so btrfs could potentially try to mount invalid filesystems."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no modificar la matriz de fragmentos del sistema en btrfs_validate_super(). El commit 2a9bb78cfd36 (\"btrfs: validar la matriz de fragmentos del sistema en btrfs_validate_super()\") introduce una llamada a validate_sys_chunk_array() en btrfs_validate_super(), que modifica el valor de ret establecido previamente. Esto invalida las comprobaciones de validez realizadas previamente, lo que permite que btrfs intente montar sistemas de archivos no v\u00e1lidos."}], "id": "CVE-2025-22114", "lastModified": "2026-07-30T06:22:15.023", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-04-16T15:16:05.617", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9db9c7dd5b4e1d3205137a094805980082c37716"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ef6800a2015e706e9852a5ec15263fec9990d012"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: btrfs: don't clobber ret in btrfs_validate_super()", "id": "2360193", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360193"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbtrfs: don't clobber ret in btrfs_validate_super()\nCommit 2a9bb78cfd36 (\"btrfs: validate system chunk array at\nbtrfs_validate_super()\") introduces a call to validate_sys_chunk_array()\nin btrfs_validate_super(), which clobbers the value of ret set earlier.\nThis has the effect of negating the validity checks done earlier, making\nit so btrfs could potentially try to mount invalid filesystems."], "name": "CVE-2025-22114", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22114\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22114\nhttps://lore.kernel.org/linux-cve-announce/2025041625-CVE-2025-22114-721d@gregkh/T"], "threat_severity": "Low"}

{}