cifs: ntstatus_to_dos_map[] is not terminated
Functions that walk the ntstatus_to_dos_map[] array could run off the end. For example, ntstatus_to_dos() loops while ntstatus_to_dos_map[].ntstatus is not 0. Granted, this is mostly theoretical, but could be used as a DOS attack if the error code in the SMB header is bogus. [Might consider adding to stable, as this patch is low risk - Steve] Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Steve French <smfrench@gmail.com>
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@ -780,7 +780,9 @@ static const struct {
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ERRDOS, ERRnoaccess, 0xc0000290}, {
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ERRDOS, ERRbadfunc, 0xc000029c}, {
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ERRDOS, ERRsymlink, NT_STATUS_STOPPED_ON_SYMLINK}, {
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ERRDOS, ERRinvlevel, 0x007c0001}, };
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ERRDOS, ERRinvlevel, 0x007c0001}, {
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0, 0, 0 }
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};
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/*****************************************************************************
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Print an error message from the status code
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