CVE-2026-72370

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72370", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.922Z", "datePublished": "2026-08-15T05:56:06.648Z", "dateUpdated": "2026-10-15T10:08:37.321Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-15T10:08:37.321Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niomap: release pages on atomic dio size mismatch\n\nIf bio_iov_iter_get_pages() or the bounce helper succeeds but builds a\nshort bio, the REQ_ATOMIC size check rejects it before submission. The\nold error path only dropped the bio reference, leaving any pages already\nattached to the bio unreleased.\n\nRelease or unbounce the pages before falling through to out_put_bio on\nthis error path.\n\nThis bug was reported by sashiko:\nhttps://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/iomap/direct-io.c"], "versions": [{"version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "lessThan": "177d22d31a4ebf13964a4154035ade385382aced", "status": "affected", "versionType": "git"}, {"version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "lessThan": "27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0", "status": "affected", "versionType": "git"}, {"version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "lessThan": "681e452683b69a8e1a571cba0f238f8ceacf55d2", "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/iomap/direct-io.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.13", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/177d22d31a4ebf13964a4154035ade385382aced"}, {"url": "https://git.kernel.org/stable/c/27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0"}, {"url": "https://git.kernel.org/stable/c/681e452683b69a8e1a571cba0f238f8ceacf55d2"}], "title": "iomap: release pages on atomic dio size mismatch", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/iomap/direct-io.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "177d22d31a4ebf13964a4154035ade385382aced", "status": "affected", "version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "versionType": "git"}, {"lessThan": "27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0", "status": "affected", "version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "versionType": "git"}, {"lessThan": "681e452683b69a8e1a571cba0f238f8ceacf55d2", "status": "affected", "version": "9e0933c21c128d6d8ac4d8aae0babaf9a43100b8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/iomap/direct-io.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\niomap: release pages on atomic dio size mismatch\n\nIf bio_iov_iter_get_pages() or the bounce helper succeeds but builds a\nshort bio, the REQ_ATOMIC size check rejects it before submission. The\nold error path only dropped the bio reference, leaving any pages already\nattached to the bio unreleased.\n\nRelease or unbounce the pages before falling through to out_put_bio on\nthis error path.\n\nThis bug was reported by sashiko:\nhttps://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com"}], "id": "CVE-2026-72370", "lastModified": "2026-10-15T11:17:43.083", "metrics": {}, "published": "2026-08-15T06:22:10.473", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/177d22d31a4ebf13964a4154035ade385382aced"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/681e452683b69a8e1a571cba0f238f8ceacf55d2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: iomap: release pages on atomic dio size mismatch", "id": "2516296", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516296"}, "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": ["A flaw was found in the Linux kernel's `iomap` subsystem. When handling atomic direct I/O (DIO) operations, if a bio (a data structure representing I/O requests) is built with a size mismatch and subsequently rejected, the kernel's error handling path fails to release the associated memory pages. This oversight can lead to a resource leak, potentially causing memory exhaustion and a Denial of Service (DoS) condition on the affected system."], "name": "CVE-2026-72370", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72370\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72370\nhttps://lore.kernel.org/linux-cve-announce/2026081515-CVE-2026-72370-d161@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9e0933c21c128d6d8ac4d8aae0babaf9a43100b8,27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9e0933c21c128d6d8ac4d8aae0babaf9a43100b8,681e452683b69a8e1a571cba0f238f8ceacf55d2)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc2,*]"}}], "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": "2026-08-15T11:30:07.158799+00:00", "updated": "2026-08-18T19:30:04.223270+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}