vulnerability
Ubuntu: (CVE-2022-48829): linux-intel-iotg-5.15 vulnerability
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 2024-07-16 | 2024-11-19 | 2025-02-20 |
Description
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.
Solution
References
- CVE-2022-48829
- https://attackerkb.com/topics/CVE-2022-48829
- URL-https://git.kernel.org/linus/a648fdeb7c0e17177a2280344d015dba3fbe3314
- URL-https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89b
- URL-https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3
- URL-https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314
- URL-https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0
- URL-https://www.cve.org/CVERecord?id=CVE-2022-48829

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