{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49849", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.230Z", "datePublished": "2025-05-01T14:10:04.480Z", "dateUpdated": "2025-05-04T08:46:50.830Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:46:50.830Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix match incorrectly in dev_args_match_device\n\nsyzkaller found a failed assertion:\n\n assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921\n\nThis can be triggered when we set devid to (u64)-1 by ioctl. In this\ncase, the match of devid will be skipped and the match of device may\nsucceed incorrectly.\n\nPatch 562d7b1512f7 introduced this function which is used to match device.\nThis function contains two matching scenarios, we can distinguish them by\nchecking the value of args->missing rather than check whether args->devid\nand args->uuid is default value."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/volumes.c"], "versions": [{"version": "5578b681fbf2b22d61189a2539efd3009518b328", "lessThan": "c9fe4719c662e0af17eea723cf345e37719fd3c9", "status": "affected", "versionType": "git"}, {"version": "562d7b1512f7369a19bca2883e2e8672d78f0481", "lessThan": "bc6c127c377010f136360552ebf91c2723081c1b", "status": "affected", "versionType": "git"}, {"version": "562d7b1512f7369a19bca2883e2e8672d78f0481", "lessThan": "0fca385d6ebc3cabb20f67bcf8a71f1448bdc001", "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/volumes.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.79", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.9", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "5.15.54", "versionEndExcluding": "5.15.79"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.0.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9"}, {"url": "https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b"}, {"url": "https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001"}], "title": "btrfs: fix match incorrectly in dev_args_match_device", "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 match incorrectly in dev_args_match_device\n\nsyzkaller found a failed assertion:\n\n assertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921\n\nThis can be triggered when we set devid to (u64)-1 by ioctl. In this\ncase, the match of devid will be skipped and the match of device may\nsucceed incorrectly.\n\nPatch 562d7b1512f7 introduced this function which is used to match device.\nThis function contains two matching scenarios, we can distinguish them by\nchecking the value of args->missing rather than check whether args->devid\nand args->uuid is default value."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: correcci\u00f3n de coincidencia incorrecta en dev_args_match_device syzkaller encontr\u00f3 una aserci\u00f3n fallida: assertion failed: (args->devid != (u64)-1) || args->missing, en fs/btrfs/volumes.c:6921 Esto puede activarse cuando configuramos devid en (u64)-1 mediante ioctl. En este caso, se omitir\u00e1 la coincidencia de devid y la coincidencia de dispositivo puede tener \u00e9xito incorrectamente. El parche 562d7b1512f7 introdujo esta funci\u00f3n que se utiliza para hacer coincidir dispositivos. Esta funci\u00f3n contiene dos escenarios de coincidencia; podemos distinguirlos comprobando el valor de args->missing en lugar de comprobar si args->devid y args->uuid son los valores predeterminados."}], "id": "CVE-2022-49849", "lastModified": "2025-05-02T13:53:20.943", "metrics": {}, "published": "2025-05-01T15:16:08.450", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0fca385d6ebc3cabb20f67bcf8a71f1448bdc001"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bc6c127c377010f136360552ebf91c2723081c1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9fe4719c662e0af17eea723cf345e37719fd3c9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: btrfs: fix match incorrectly in dev_args_match_device", "id": "2363411", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363411"}, "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-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbtrfs: fix match incorrectly in dev_args_match_device\nsyzkaller found a failed assertion:\nassertion failed: (args->devid != (u64)-1) || args->missing, in fs/btrfs/volumes.c:6921\nThis can be triggered when we set devid to (u64)-1 by ioctl. In this\ncase, the match of devid will be skipped and the match of device may\nsucceed incorrectly.\nPatch 562d7b1512f7 introduced this function which is used to match device.\nThis function contains two matching scenarios, we can distinguish them by\nchecking the value of args->missing rather than check whether args->devid\nand args->uuid is default value."], "name": "CVE-2022-49849", "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": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49849\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49849\nhttps://lore.kernel.org/linux-cve-announce/2025050143-CVE-2022-49849-e2cc@gregkh/T"], "threat_severity": "Moderate"}