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CVE-2026-72370 (GCVE-0-2026-72370)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:13
VLAI
Title
iomap: release pages on atomic dio size mismatch
Summary
In the Linux kernel, the following vulnerability has been resolved: iomap: release pages on atomic dio size mismatch If bio_iov_iter_get_pages() or the bounce helper succeeds but builds a short bio, the REQ_ATOMIC size check rejects it before submission. The old error path only dropped the bio reference, leaving any pages already attached to the bio unreleased. Release or unbounce the pages before falling through to out_put_bio on this error path. This bug was reported by sashiko: https://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 , < 27ddd3442fc6f698fb8577c7cfb243ddd81ea8c0 (git)
Affected: 9e0933c21c128d6d8ac4d8aae0babaf9a43100b8 , < 681e452683b69a8e1a571cba0f238f8ceacf55d2 (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "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"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72370",
    "datePublished": "2026-08-15T05:56:06.648Z",
    "dateReserved": "2026-08-09T03:40:39.922Z",
    "dateUpdated": "2026-08-17T05:13:22.015Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-18T07:20:56+00:00",
      "cve": "CVE-2026-72370",
      "id": "CVE-2026-72370",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "76",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: iomap: release pages on atomic dio size mismatch",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72370.json",
      "version": "3"
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}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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