{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50839", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.133Z", "datePublished": "2025-12-30T12:10:58.406Z", "dateUpdated": "2026-01-02T15:04:54.389Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-02T15:04:54.389Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix potential buffer head reference count leak\n\nAs in 'jbd2_fc_wait_bufs' if buffer isn't uptodate, will return -EIO without\nupdate 'journal->j_fc_off'. But 'jbd2_fc_release_bufs' will release buffer head\nfrom \u2018j_fc_off - 1\u2019 if 'bh' is NULL will terminal release which will lead to\nbuffer head buffer head reference count leak.\nTo solve above issue, update 'journal->j_fc_off' before return -EIO."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/jbd2/journal.c"], "versions": [{"version": "ff780b91efe901b8eecd8114785abae5341820ad", "lessThan": "7a33dde572fceb45d02d188e0213c47059401c93", "status": "affected", "versionType": "git"}, {"version": "ff780b91efe901b8eecd8114785abae5341820ad", "lessThan": "e7385c868ee038d6a0cb0e85c22d2741e7910fd5", "status": "affected", "versionType": "git"}, {"version": "ff780b91efe901b8eecd8114785abae5341820ad", "lessThan": "68ed9c76b2affd47177b92495446abb7262d0ef7", "status": "affected", "versionType": "git"}, {"version": "ff780b91efe901b8eecd8114785abae5341820ad", "lessThan": "9b073d73725366d886b711b74e058c02f51e7a0e", "status": "affected", "versionType": "git"}, {"version": "ff780b91efe901b8eecd8114785abae5341820ad", "lessThan": "e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a", "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/jbd2/journal.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.150", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.75", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.17", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.3", "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": "5.10", "versionEndExcluding": "5.10.150"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.15.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.19.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.0.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7a33dde572fceb45d02d188e0213c47059401c93"}, {"url": "https://git.kernel.org/stable/c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5"}, {"url": "https://git.kernel.org/stable/c/68ed9c76b2affd47177b92495446abb7262d0ef7"}, {"url": "https://git.kernel.org/stable/c/9b073d73725366d886b711b74e058c02f51e7a0e"}, {"url": "https://git.kernel.org/stable/c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a"}], "title": "jbd2: fix potential buffer head reference count leak", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix potential buffer head reference count leak\n\nAs in 'jbd2_fc_wait_bufs' if buffer isn't uptodate, will return -EIO without\nupdate 'journal->j_fc_off'. But 'jbd2_fc_release_bufs' will release buffer head\nfrom \u2018j_fc_off - 1\u2019 if 'bh' is NULL will terminal release which will lead to\nbuffer head buffer head reference count leak.\nTo solve above issue, update 'journal->j_fc_off' before return -EIO."}], "id": "CVE-2022-50839", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:15:58.463", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68ed9c76b2affd47177b92495446abb7262d0ef7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7a33dde572fceb45d02d188e0213c47059401c93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9b073d73725366d886b711b74e058c02f51e7a0e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0d5fc7a6d80ac2406c7dfc6bb625201d0250a8a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7385c868ee038d6a0cb0e85c22d2741e7910fd5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: jbd2: fix potential buffer head reference count leak", "id": "2426156", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426156"}, "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": ["No description is available for this CVE."], "name": "CVE-2022-50839", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50839\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50839\nhttps://lore.kernel.org/linux-cve-announce/2025123019-CVE-2022-50839-eca8@gregkh/T"], "threat_severity": "Low"}