cve-2024-46688
Vulnerability from cvelistv5
Published
2024-09-13 05:29
Modified
2024-12-19 09:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails If z_erofs_gbuf_growsize() partially fails on a global buffer due to memory allocation failure or fault injection (as reported by syzbot [1]), new pages need to be freed by comparing to the existing pages to avoid memory leaks. However, the old gbuf->pages[] array may not be large enough, which can lead to null-ptr-deref or out-of-bound access. Fix this by checking against gbuf->nrpages in advance. [1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com
Impacted products
Vendor Product Version
Linux Linux Version: 6.10
Show details on NVD website


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                "timestamp": "2024-09-29T15:07:39.843089Z",
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails\n\nIf z_erofs_gbuf_growsize() partially fails on a global buffer due to\nmemory allocation failure or fault injection (as reported by syzbot [1]),\nnew pages need to be freed by comparing to the existing pages to avoid\nmemory leaks.\n\nHowever, the old gbuf-\u003epages[] array may not be large enough, which can\nlead to null-ptr-deref or out-of-bound access.\n\nFix this by checking against gbuf-\u003enrpages in advance.\n\n[1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com"
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    "datePublished": "2024-09-13T05:29:19.031Z",
    "dateReserved": "2024-09-11T15:12:18.249Z",
    "dateUpdated": "2024-12-19T09:20:59.998Z",
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