CVE-2026-68422

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/btrfs/relocation.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f89df93e8aefa4c1c813f835559f2ac727f79766", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "3f586b4c92e4272fcd01bf0db0590b63acf3e85b", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "b3d39b03799600c76c33486e2d29b73a771023db", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "72f673d1c1deb819554d3e7e154f6d84301eb735", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "60a23d4ea169e27403f3bb023bb98036797c0206", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "7591d1727067d6063247901ad25c4bdc4e5695c4", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}, {"lessThan": "ce6050bafb4e33377dc17fcc357736bfc351180c", "status": "affected", "version": "24213fa46c7080c31d79aa2e3e2f0d9480cab700", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/btrfs/relocation.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"lessThan": "5.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nbtrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()\n\nIf we have an unexpected reloc_root for our root, we jump to the out label\nbut never drop the reference we obtained for root, resulting in a leak.\nAdd a missing btrfs_put_root() call."}], "id": "CVE-2026-68422", "lastModified": "2026-11-06T17:19:32.663", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68422", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:49:10.686540Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:36.087", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3f586b4c92e4272fcd01bf0db0590b63acf3e85b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/60a23d4ea169e27403f3bb023bb98036797c0206"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/72f673d1c1deb819554d3e7e154f6d84301eb735"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7591d1727067d6063247901ad25c4bdc4e5695c4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3d39b03799600c76c33486e2d29b73a771023db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ce6050bafb4e33377dc17fcc357736bfc351180c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f89df93e8aefa4c1c813f835559f2ac727f79766"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: btrfs resource leak in merge_reloc_roots()", "id": "2513381", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513381"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbtrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()\nIf we have an unexpected reloc_root for our root, we jump to the out label\nbut never drop the reference we obtained for root, resulting in a leak.\nAdd a missing btrfs_put_root() call.", "A flaw was found in the btrfs filesystem component of the Linux kernel. An unexpected relocation root in the `merge_reloc_roots()` function can lead to a resource leak. This occurs because a reference to the root is not properly released, potentially causing system instability or a denial of service due to resource exhaustion."], "name": "CVE-2026-68422", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:04:42Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68422\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68422\nhttps://git.kernel.org/stable/c/60a23d4ea169e27403f3bb023bb98036797c0206\nhttps://git.kernel.org/stable/c/72f673d1c1deb819554d3e7e154f6d84301eb735\nhttps://git.kernel.org/stable/c/7591d1727067d6063247901ad25c4bdc4e5695c4\nhttps://git.kernel.org/stable/c/b3d39b03799600c76c33486e2d29b73a771023db\nhttps://git.kernel.org/stable/c/ce6050bafb4e33377dc17fcc357736bfc351180c"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24213fa46c7080c31d79aa2e3e2f0d9480cab700,b3d39b03799600c76c33486e2d29b73a771023db)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24213fa46c7080c31d79aa2e3e2f0d9480cab700,72f673d1c1deb819554d3e7e154f6d84301eb735)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24213fa46c7080c31d79aa2e3e2f0d9480cab700,60a23d4ea169e27403f3bb023bb98036797c0206)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24213fa46c7080c31d79aa2e3e2f0d9480cab700,7591d1727067d6063247901ad25c4bdc4e5695c4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24213fa46c7080c31d79aa2e3e2f0d9480cab700,ce6050bafb4e33377dc17fcc357736bfc351180c)"}}], "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": "generic", "value": "5.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "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": "2026-08-10T16:30:05.108182+00:00", "updated": "2026-08-12T19:15:04.126089+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-399", "CWE-772"]}