CVE-2024-44963

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-44963", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-21T05:34:56.667Z", "datePublished": "2024-09-04T18:36:00.948Z", "dateUpdated": "2026-10-30T12:19:11.923Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:19:11.923Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not BUG_ON() when freeing tree block after error\n\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\ncreate a delayed reference we don't deal with the error and just do a\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\ncomment mentioning that only -ENOMEM can happen, but that is not true,\nbecause in case qgroups are enabled any error returned from\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\nfrom btrfs_search_slot() for example) can be propagated back to\nbtrfs_free_tree_block().\n\nSo stop doing a BUG_ON() and return the error to the callers and make\nthem abort the transaction to prevent leaking space. Syzbot was\ntriggering this, likely due to memory allocation failure injection."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "versions": [{"version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "bfcef12f80b3a9bd6b09c7305679164e3307328a", "status": "affected", "versionType": "git"}, {"version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "22d907bcd283d69d5e60497fc0d51969545c583b", "status": "affected", "versionType": "git"}, {"version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "98251cd60b4d702a8a81de442ab621e83a3fb24f", "status": "affected", "versionType": "git"}, {"version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "bb3868033a4cccff7be57e9145f2117cbdc91c11", "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/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "versions": [{"version": "4.11", "status": "affected"}, {"version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.64", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.5", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "4.11", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.6.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.10.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bfcef12f80b3a9bd6b09c7305679164e3307328a"}, {"url": "https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b"}, {"url": "https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f"}, {"url": "https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11"}], "title": "btrfs: do not BUG_ON() when freeing tree block after error", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-44963", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:39:41.059166Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:35.583Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-44963", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:39:41.059166Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:27.552Z"}}], "cna": {"title": "btrfs: do not BUG_ON() when freeing tree block after error", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "bfcef12f80b3a9bd6b09c7305679164e3307328a", "versionType": "git"}, {"status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "22d907bcd283d69d5e60497fc0d51969545c583b", "versionType": "git"}, {"status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "98251cd60b4d702a8a81de442ab621e83a3fb24f", "versionType": "git"}, {"status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "lessThan": "bb3868033a4cccff7be57e9145f2117cbdc91c11", "versionType": "git"}], "programFiles": ["fs/btrfs/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"status": "unaffected", "version": "0", "lessThan": "4.11", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.64", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.5", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/btrfs/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/bfcef12f80b3a9bd6b09c7305679164e3307328a"}, {"url": "https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b"}, {"url": "https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f"}, {"url": "https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not BUG_ON() when freeing tree block after error\n\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\ncreate a delayed reference we don't deal with the error and just do a\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\ncomment mentioning that only -ENOMEM can happen, but that is not true,\nbecause in case qgroups are enabled any error returned from\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\nfrom btrfs_search_slot() for example) can be propagated back to\nbtrfs_free_tree_block().\n\nSo stop doing a BUG_ON() and return the error to the callers and make\nthem abort the transaction to prevent leaking space. Syzbot was\ntriggering this, likely due to memory allocation failure injection."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.64", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.5", "versionStartIncluding": "4.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "4.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:19:11.923Z"}}}, "cveMetadata": {"cveId": "CVE-2024-44963", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:19:11.923Z", "dateReserved": "2024-08-21T05:34:56.667Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-04T18:36:00.948Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/btrfs/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bfcef12f80b3a9bd6b09c7305679164e3307328a", "status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "versionType": "git"}, {"lessThan": "22d907bcd283d69d5e60497fc0d51969545c583b", "status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "versionType": "git"}, {"lessThan": "98251cd60b4d702a8a81de442ab621e83a3fb24f", "status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "versionType": "git"}, {"lessThan": "bb3868033a4cccff7be57e9145f2117cbdc91c11", "status": "affected", "version": "fb235dc06fac9eaa4408ade9c8b20d45d63c89b7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/btrfs/ctree.c", "fs/btrfs/extent-tree.c", "fs/btrfs/extent-tree.h", "fs/btrfs/free-space-tree.c", "fs/btrfs/ioctl.c", "fs/btrfs/qgroup.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"lessThan": "4.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.64", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4CB0927-C720-465B-99F2-3E47215515F2", "versionEndExcluding": "6.10.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not BUG_ON() when freeing tree block after error\n\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\ncreate a delayed reference we don't deal with the error and just do a\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\ncomment mentioning that only -ENOMEM can happen, but that is not true,\nbecause in case qgroups are enabled any error returned from\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\nfrom btrfs_search_slot() for example) can be propagated back to\nbtrfs_free_tree_block().\n\nSo stop doing a BUG_ON() and return the error to the callers and make\nthem abort the transaction to prevent leaking space. Syzbot was\ntriggering this, likely due to memory allocation failure injection."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no hacer BUG_ON() al liberar un bloque de \u00e1rbol despu\u00e9s de un error Al liberar un bloque de \u00e1rbol, en btrfs_free_tree_block(), si no podemos crear una referencia retrasada, no nos ocupamos del error y simplemente hacemos un BUG_ON(). El error m\u00e1s probable que ocurra es -ENOMEM, y tenemos un comentario que menciona que solo puede ocurrir -ENOMEM, pero eso no es cierto, porque en caso de que los qgroups est\u00e9n habilitados, cualquier error devuelto por btrfs_qgroup_trace_extent_post() (puede ser -EUCLEAN o cualquier cosa devuelta por btrfs_search_slot(), por ejemplo) se puede propagar de vuelta a btrfs_free_tree_block(). As\u00ed que deja de hacer un BUG_ON() y devuelve el error a los llamadores y haz que aborten la transacci\u00f3n para evitar fugas de espacio. Syzbot estaba activando esto, probablemente debido a la inyecci\u00f3n de fallo de asignaci\u00f3n de memoria."}], "id": "CVE-2024-44963", "lastModified": "2026-10-30T13:17:34.877", "metrics": {"cvssMetricV31": [{"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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-44963", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T17:39:41.059166Z", "version": "2.0.3"}}]}, "published": "2024-09-04T19:15:30.883", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/22d907bcd283d69d5e60497fc0d51969545c583b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/98251cd60b4d702a8a81de442ab621e83a3fb24f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bb3868033a4cccff7be57e9145f2117cbdc91c11"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bfcef12f80b3a9bd6b09c7305679164e3307328a"}], "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: do not BUG_ON() when freeing tree block after error", "id": "2309794", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2309794"}, "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"}, "cwe": "CWE-754", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbtrfs: do not BUG_ON() when freeing tree block after error\nWhen freeing a tree block, at btrfs_free_tree_block(), if we fail to\ncreate a delayed reference we don't deal with the error and just do a\nBUG_ON(). The error most likely to happen is -ENOMEM, and we have a\ncomment mentioning that only -ENOMEM can happen, but that is not true,\nbecause in case qgroups are enabled any error returned from\nbtrfs_qgroup_trace_extent_post() (can be -EUCLEAN or anything returned\nfrom btrfs_search_slot() for example) can be propagated back to\nbtrfs_free_tree_block().\nSo stop doing a BUG_ON() and return the error to the callers and make\nthem abort the transaction to prevent leaking space. Syzbot was\ntriggering this, likely due to memory allocation failure injection."], "name": "CVE-2024-44963", "package_state": [{"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": "2024-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-44963\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-44963\nhttps://lore.kernel.org/linux-cve-announce/2024090414-CVE-2024-44963-2e6d@gregkh/T"], "threat_severity": "Moderate"}

{}