{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43359", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.005Z", "datePublished": "2026-05-08T14:21:14.357Z", "dateUpdated": "2026-05-08T14:21:14.357Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-08T14:21:14.357Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix transaction abort on set received ioctl due to item overflow\n\nIf the set received ioctl fails due to an item overflow when attempting to\nadd the BTRFS_UUID_KEY_RECEIVED_SUBVOL we have to abort the transaction\nsince we did some metadata updates before.\n\nThis means that if a user calls this ioctl with the same received UUID\nfield for a lot of subvolumes, we will hit the overflow, trigger the\ntransaction abort and turn the filesystem into RO mode. A malicious user\ncould exploit this, and this ioctl does not even requires that a user\nhas admin privileges (CAP_SYS_ADMIN), only that he/she owns the subvolume.\n\nFix this by doing an early check for item overflow before starting a\ntransaction. This is also race safe because we are holding the subvol_sem\nsemaphore in exclusive (write) mode.\n\nA test case for fstests will follow soon."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/ioctl.c", "fs/btrfs/uuid-tree.c", "fs/btrfs/uuid-tree.h"], "versions": [{"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "b9914db13ac15aca3b74544c0bb1a2e0dad1f174", "status": "affected", "versionType": "git"}, {"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "b19c0465e4daad5aa8f60552ea0578cf31a11b1e", "status": "affected", "versionType": "git"}, {"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5", "status": "affected", "versionType": "git"}, {"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "d11aefe654a04fc41996d254748d6a38b6b0a7be", "status": "affected", "versionType": "git"}, {"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "41fb97353ff58fa4f31904c343fc8e3df2f7517d", "status": "affected", "versionType": "git"}, {"version": "dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70", "lessThan": "87f2c46003fce4d739138aab4af1942b1afdadac", "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/ioctl.c", "fs/btrfs/uuid-tree.c", "fs/btrfs/uuid-tree.h"], "versions": [{"version": "3.12", "status": "affected"}, {"version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.167", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "3.12", "versionEndExcluding": "6.1.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b9914db13ac15aca3b74544c0bb1a2e0dad1f174"}, {"url": "https://git.kernel.org/stable/c/b19c0465e4daad5aa8f60552ea0578cf31a11b1e"}, {"url": "https://git.kernel.org/stable/c/2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5"}, {"url": "https://git.kernel.org/stable/c/d11aefe654a04fc41996d254748d6a38b6b0a7be"}, {"url": "https://git.kernel.org/stable/c/41fb97353ff58fa4f31904c343fc8e3df2f7517d"}, {"url": "https://git.kernel.org/stable/c/87f2c46003fce4d739138aab4af1942b1afdadac"}], "title": "btrfs: fix transaction abort on set received ioctl due to item overflow", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix transaction abort on set received ioctl due to item overflow\n\nIf the set received ioctl fails due to an item overflow when attempting to\nadd the BTRFS_UUID_KEY_RECEIVED_SUBVOL we have to abort the transaction\nsince we did some metadata updates before.\n\nThis means that if a user calls this ioctl with the same received UUID\nfield for a lot of subvolumes, we will hit the overflow, trigger the\ntransaction abort and turn the filesystem into RO mode. A malicious user\ncould exploit this, and this ioctl does not even requires that a user\nhas admin privileges (CAP_SYS_ADMIN), only that he/she owns the subvolume.\n\nFix this by doing an early check for item overflow before starting a\ntransaction. This is also race safe because we are holding the subvol_sem\nsemaphore in exclusive (write) mode.\n\nA test case for fstests will follow soon."}], "id": "CVE-2026-43359", "lastModified": "2026-05-08T15:16:46.717", "metrics": {}, "published": "2026-05-08T15:16:46.717", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41fb97353ff58fa4f31904c343fc8e3df2f7517d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/87f2c46003fce4d739138aab4af1942b1afdadac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b19c0465e4daad5aa8f60552ea0578cf31a11b1e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b9914db13ac15aca3b74544c0bb1a2e0dad1f174"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d11aefe654a04fc41996d254748d6a38b6b0a7be"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70,b9914db13ac15aca3b74544c0bb1a2e0dad1f174)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70,b19c0465e4daad5aa8f60552ea0578cf31a11b1e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70,2e57b8cac2ba0d38aac76c1ecdfd8b899e3581a5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70,d11aefe654a04fc41996d254748d6a38b6b0a7be)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d375...b92768fb1ce70,41fb97353ff58fa4f31904c343fc8e3df2f7517d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dd5f9615fc5c5e8d3751aab3a17b92768fb1ce70,87f2c46003fce4d739138aab4af1942b1afdadac)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.167,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.78,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.19,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19.9,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-08T16:45:12.739303+00:00", "updated": "2026-05-08T17:30:13.919054+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-284", "CWE-658"]}