ghsa-2294-53w4-gch9
Vulnerability from github
Published
2024-07-16 12:30
Modified
2024-07-16 12:30
Details
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
iattr::ia_size is a loff_t, so these NFSv3 procedures must be careful to deal with incoming client size values that are larger than s64_max without corrupting the value.
Silently capping the value results in storing a different value than the client passed in which is unexpected behavior, so remove the min_t() check in decode_sattr3().
Note that RFC 1813 permits only the WRITE procedure to return NFS3ERR_FBIG. We believe that NFSv3 reference implementations also return NFS3ERR_FBIG when ia_size is too large.
{ "affected": [], "aliases": [ "CVE-2022-48829" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-07-16T12:15:06Z", "severity": null }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Fix NFSv3 SETATTR/CREATE\u0027s handling of large file sizes\n\niattr::ia_size is a loff_t, so these NFSv3 procedures must be\ncareful to deal with incoming client size values that are larger\nthan s64_max without corrupting the value.\n\nSilently capping the value results in storing a different value\nthan the client passed in which is unexpected behavior, so remove\nthe min_t() check in decode_sattr3().\n\nNote that RFC 1813 permits only the WRITE procedure to return\nNFS3ERR_FBIG. We believe that NFSv3 reference implementations\nalso return NFS3ERR_FBIG when ia_size is too large.", "id": "GHSA-2294-53w4-gch9", "modified": "2024-07-16T12:30:41Z", "published": "2024-07-16T12:30:41Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48829" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89b" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0" } ], "schema_version": "1.4.0", "severity": [] }
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