cve-2021-47087
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-08-04 05:24
Severity
Summary
tee: optee: Fix incorrect page free bug
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website


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                "timestamp": "2024-03-06T20:26:26.296406Z",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntee: optee: Fix incorrect page free bug\n\nPointer to the allocated pages (struct page *page) has already\nprogressed towards the end of allocation. It is incorrect to perform\n__free_pages(page, order) using this pointer as we would free any\narbitrary pages. Fix this by stop modifying the page pointer."
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    "datePublished": "2024-03-04T18:10:17.107Z",
    "dateReserved": "2024-02-29T22:33:44.299Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47087\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-04T18:15:07.457\",\"lastModified\":\"2024-03-05T13:41:01.900\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntee: optee: Fix incorrect page free bug\\n\\nPointer to the allocated pages (struct page *page) has already\\nprogressed towards the end of allocation. It is incorrect to perform\\n__free_pages(page, order) using this pointer as we would free any\\narbitrary pages. Fix this by stop modifying the page pointer.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tee: optee: corrige el error de liberaci\u00f3n de p\u00e1gina incorrecta. El puntero a las p\u00e1ginas asignadas (p\u00e1gina de estructura *p\u00e1gina) ya ha avanzado hacia el final de la asignaci\u00f3n. Es incorrecto ejecutar __free_pages(page, order) usando este puntero ya que liberar\u00edamos p\u00e1ginas arbitrarias. Solucione este problema dejando de modificar el puntero de la p\u00e1gina.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18549bf4b21c739a9def39f27dcac53e27286ab5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/806142c805cacd098e61bdc0f72c778a2389fe4a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/91e94e42f6fc49635f1a16d8ae3f79552bcfda29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad338d825e3f7b96ee542bf313728af2d19fe9ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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