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{"bugzilla": {"description": "kernel: block: Fix iterating over an empty bio with bio_for_each_folio_all", "id": "2270131", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2270131"}, "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-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nblock: Fix iterating over an empty bio with bio_for_each_folio_all\nIf the bio contains no data, bio_first_folio() calls page_folio() on a\nNULL pointer and oopses. Move the test that we've reached the end of\nthe bio from bio_next_folio() to bio_first_folio().\n[axboe: add unlikely() to error case]", "A vulnerability was found in block subsystem of Linux Kernel causing a system crash when iterating an empty bio using bio_for_each_folio_all() function. This occurred because bio_first_folio() called page_folio() on a NULL pointer."], "mitigation": {"lang": "en:us", "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}, "name": "CVE-2024-26632", "package_state": [{"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": "2024-03-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26632\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26632\nhttps://lore.kernel.org/linux-cve-announce/20240318100758.2828621-15-lee@kernel.org/T"], "threat_severity": "Moderate"}

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