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author | Chuck Lever <chuck.lever@oracle.com> | 2022-01-25 23:59:57 +0300 |
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committer | Chuck Lever <chuck.lever@oracle.com> | 2022-02-09 17:23:38 +0300 |
commit | a648fdeb7c0e17177a2280344d015dba3fbe3314 (patch) | |
tree | eb1574dc60f5c45ea560db620f6dc74c40258ce6 /fs/nfsd/nfs3proc.c | |
parent | e6faac3f58c7c4176b66f63def17a34232a17b0e (diff) | |
download | linux-a648fdeb7c0e17177a2280344d015dba3fbe3314.tar.xz |
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.
Cc: stable@vger.kernel.org
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/nfs3proc.c')
0 files changed, 0 insertions, 0 deletions