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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntomoyo: fix UAF write bug in tomoyo_write_control()\n\nSince tomoyo_write_control() updates head->write_buf when write()\nof long lines is requested, we need to fetch head->write_buf after\nhead->io_sem is held. Otherwise, concurrent write() requests can\ncause use-after-free-write and double-free problems."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tomoyo: corrige el error de escritura UAF en tomoyo_write_control() Dado que tomoyo_write_control() actualiza head->write_buf cuando se solicita write() de l\u00edneas largas, necesitamos recuperar head->write_buf despu\u00e9s head->io_sem se mantiene. De lo contrario, las solicitudes de escritura () simult\u00e1neas pueden causar problemas de use-after-free-write y de doble liberaci\u00f3n."}], "id": "CVE-2024-26622", "lastModified": "2024-11-05T10:15:34.130", "metrics": {}, "published": "2024-03-04T07:15:11.063", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503fee"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: tomoyo: fix UAF write bug in tomoyo_write_control()", "id": "2267721", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267721"}, "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-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntomoyo: fix UAF write bug in tomoyo_write_control()\nSince tomoyo_write_control() updates head->write_buf when write()\nof long lines is requested, we need to fetch head->write_buf after\nhead->io_sem is held. Otherwise, concurrent write() requests can\ncause use-after-free-write and double-free problems.", "A flaw was found in the Tomoyo module in the Linux kernel. The tomoyo_write_control function in the security/tomoyo/common.c file does not protect a buffer from multiple concurrent write requests. This issue potentially leads to a use-after-free or double-free, resulting in a denial of service."], "name": "CVE-2024-26622", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-03-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26622\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26622\nhttps://lore.kernel.org/linux-cve-announce/2024030409-CVE-2024-26622-9e01@gregkh/"], "statement": "The kernel as shipped in Red Hat Enterprise Linux 8 and 9 is not affected by this vulnerability because the Tomoyo module is not built.", "threat_severity": "Moderate", "upstream_fix": "kernel 6.8-rc7"}